Important moments in the history of science by Ahmet Aydar

1000's years

ahmet3aydar — 2021-11-03 09:44:51 UTC

Famous Turkish physician Ibn Sina was born in 980. In the west it is known as Avecena.
Why it is important: The work of Ibn Sina has taken an important place in the development of modern medicine. In fact, some of the measures taken for epidemic diseases at that time are still used today.

2000's years

ahmet3aydar — 2021-11-03 09:52:30 UTC

The first planet candidate was determined on October 6, 1995, around the star 51 Pegasi, 50 light-years away.
Why it matters: With the discovery of exoplanets, the opportunity to live on another planet other than Earth may come in the future. It can also explain how life on Earth came about.

1876 “Alexander Graham Bell” the invention of the telephone

burcucakicitufan — 2021-11-16 15:33:08 UTC

Known and adopted by the invention of the telephone, Alexander Graham Bell enabled people to talk to their loved ones far away with an important invention in 1876. Due to the fact that his mother and the girl he loved were deaf, Graham Bell's work, who was looking for an invention that would make a voice for the deaf, led to the invention of the telephone.

1608 Invention of the Telescope

burcucakicitufan — 2021-11-16 15:42:50 UTC

The first telescope was made by Hans Lippershey in 1608. Galileo, an Italian scientist, who invented the telescope in his own lands, signed the invention of the telescope, which is more advanced and used in space science. The telescope, which makes it easier to examine objects in space and in the sky and has the feature of showing even the smallest objects 30 times larger, is an invention that has made great contributions to the development of astronomy science.

Microwave - 1940

albuquerque2 — 2021-11-16 17:56:35 UTC

In the early 1940s, Percy Spencer, an engineer at Raytheon Corporation, was testing one of the company's thermionic valves when suddenly the candy bar in his pocket accidentally melted. Intrigued, he began to aim the valve at other objects and concluded that their melting was caused by the energy of small waves of heat. And so the microwave was born, in 1945.

Egas Moniz - 1927

albuquerque2 — 2021-11-16 17:58:49 UTC

António Egas Moniz was a Portuguese doctor, neurosurgeon, researcher, professor, politician and writer. Responsible for the development of arteriography, or cerebral angiography in 1927, a discovery that revolutionized medicine and neurosurgery, allowing the diagnosis of brain tumors and the diagnosis and treatment of cerebral aneurysm and AVM (arteriovenous malformation). He was nominated for a Nobel Prize three times for this discovery (1928, 1929, 1930). Inventor of the neurosurgical procedure called prefrontal leucotomy, which enabled the emergence of psychosurgery, for this last discovery he was awarded the Nobel Prize in Physiology or Medicine in 1949, shared with the Swiss physiologist Walter Rudolf Hess.

Invention of the rabies vaccine

2021-11-22 11:48:11 UTC

Pasteur tried this method on rabbits. He then experimented with 11 dogs to investigate the effect of the vaccine on rabies. He administered the rabies vaccine to 9-year-old Joseph Meister, who had been bitten by a rabid dog on July 6, 1885.

Car's Invention Ada/Ahmet 1886

2021-11-22 12:27:54 UTC

Cars came into global use during the 20th century depend on them. The year 1886 is regarded as the birth year of the car when German inventor Karl Benz patented his Benz Patent-Motorwagon.Cars became widely available in the early 20th century. One of the first cars accessible to the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal-drawn carriages and carts.In Europe and other parts of the world, demand for automobiles did not increase until after World War 2

The Invention Of The Engines;Internal combustion engines are machines that are formed by the pressure created by burning the fuel in a limited area called the combustion chamber inside the engine, moving the part called the piston. Considered the predecessor of internal combustion engines, an assembly consisting of a metallic cylinder with a piston was developed in Paris in 1673 by physicist Christiaan Huygens and his assistant Denis Papin. Belgian engineer Étienne Lenoir patented a two-stroke internal combustion engine under the name "Gas and expanded air engine" in 1859, and in 1860 he developed the first electrically ignited and water-cooled internal combustion engine.The reason why these engines are called internal combustion engines is that combustion takes place inside the engine. In external combustion engines, they are called external combustion engines because combustion takes place outside. For example: Steam engine. Internal combustion engines took an important place in the invention of automobiles in the following years.

alptugcihanx56 — 2021-11-22 16:05:08 UTC

1847-1931 Thomas Alva Edison

huseyin29032010 — 2021-11-22 16:32:49 UTC

Thomas Alva Edison (February 11, 1847 - October 18, 1931) was an American inventor and businessman who greatly influenced 20th century life with his inventions. He developed devices in many fields such as electric power generation, mass communication, sound recording, and filmmaking. His inventions, such as the phonograph, the film camera, and early versions of the light bulb, made a huge impact in the industrialized modern world.                             We he is important.                                        He was one of the first inventors to apply the principles of orderly science and teamwork to the invention development process. He worked with many researchers. Established the world's first industrial research laboratory. He is one of the most prolific inventors of history, with 1,093 patents registered in the USA as well as patents in other countries.[3][4][5]

Edison was married twice and had six children. He died of diabetes in 1931.

1590 ''Zacharias Janssen'' Invention of the Microscope

huseyin29032010 — 2021-11-22 16:34:19 UTC

The microscope, which was used to examine invisible materials, was first used in the XVII century. It appeared in the century. This simple tool consisted of two slides. By sliding one of these slides inside the other, it was possible to magnify and reflect the items.

We it is important.

Microscopes, which could only examine substances that could not be seen through before, have now reached the capacity to examine homogeneous substances with the invention of the Italian scholar Campari, later in the century.

The first complex microscope was invented by Zacharias Janssen in 1590, after the simple microscope with a single lens invented by the Dutch Anton van leeuwenhoek.

The instrument called microscope, which is formed by the combination of the Greek words "micros" meaning small and "skopeein" meaning to look, is basically made of two lenses, eyepiece and objective. The lens magnifies the object under examination, while the eyepiece makes the image even larger.

The substances to be examined are placed in the glass section of the microscope. Good visibility of objects is due to the fact that this glass is very thin and transmits light well. Light reflection in microscopes is carried out through mirrors. Highly developed electronic microscopes are capable of magnifying matter millions of times.

The basic parts of a microscope are a capacitor that serves as illumination, the adjusting screws that are reflected, and the diaphragm that controls the amount of light going into the capacitor.

1833 ''Charies Babbage'' Invention of the computers

huseyin29032010 — 2021-11-22 16:35:20 UTC

The first computers are said to have been abacuses. However, when adapted to the present day, the first computers were produced by Charies Babbage. A computer was first designed by Charles Babbage in 1833. Charles Babbage developed this prototype until 1870. Charles Babbage created a difference machine that adds and subtracts numbers. Instead of simplifying this machine, he produced the computer in order to improve it further.                                       We it is imortant.                                         This computer he produced was a computer that did simple operations such as addition and subtraction. In this way, computers have been developed and kept up to date.

1822/Calculator's History Arda Özcan Mualla Ersezgin Secondary School

stickminh2 — 2021-11-22 18:17:32 UTC

The 18th century saw the arrival of some notable improvements, first by Poleni with the first fully functional calculating clock and four-operation machine, but these machines were almost always one of a kind. Luigi Torchi invented the first direct multiplication machine in 1834: this was also the second key-driven machine in the world, following that of James White (1822).^[13] It was not until the 19th century and the Industrial Revolution that real developments began to occur. Although machines capable of performing all four arithmetic functions existed prior to the 19th century, the refinement of manufacturing and fabrication processes during the eve of the industrial revolution made large scale production of more compact and modern units possible. The Arithmometer, invented in 1820 as a four-operation mechanical calculator, was released to production in 1851 as an adding machine and became the first commercially successful unit; forty years later, by 1890, about 2,500 arithmometers had been sold^[14] plus a few hundreds more from two arithmometer clone makers (Burkhardt, Germany, 1878 and Layton, UK, 1883) and Felt and Tarrant, the only other competitor in true commercial production, had sold 100 comptometers.^[15]

Patent image of the Clarke graph-based calculator, 1921

It wasn't until 1902 that the familiar push-button user interface was developed, with the introduction of the Dalton Adding Machine, developed by James L. Dalton in the United States.

In 1921, Edith Clarke invented the "Clarke calculator", a simple graph-based calculator for solving line equations involving hyperbolic functions. This allowed electrical engineers to simplify calculations for inductance and capacitance in power transmission lines.^[16]

The Curta calculator was developed in 1948 and, although costly, became popular for its portability. This purely mechanical hand-held device could do addition, subtraction, multiplication and division. By the early 1970s electronic pocket calculators ended manufacture of mechanical calculators, although the Curta remains a popular collectable item.

Canan Dağdeviren's invention Ecrin Naz/Ahmet

ecrinseker2408 — 2021-11-22 18:26:27 UTC

Canan Dağdeviren, who is among the new generation of Turkish scientists, is the first Turkish to be a member of the Harvard University Young Academy. Working as a researcher at MIT Media Lab on wearable technology, flexible electronic devices and next-generation circuits, Dağdeviren invented the wearable heart chip that can detect skin cancer.

Invention of the Artificial Satellite Rabia VURAL Mualla Ersezgin Secondary School

iceboys49 — 2021-11-23 15:21:15 UTC

Nikola Tesla (Evrim Aydar Teams İbrahim Battal)

2021-11-23 15:29:07 UTC

Born and raised in the Austrian Empire, Tesla received an advanced training in engineering and physics in the 1870s and gained hands-on experience in the early 1880s while working in telephony and the new electric power industry under Continental Edison. In 1884, he emigrated to the United States, where he became a citizen. He worked at Edison Machine Works before briefly making his own way in New York. For his partners to fund and market their ideas, Tesla set up laboratories and companies in New York to develop various electrical and mechanical devices. His alternating current (AC) induction motor and related polyphase AC patents licensed by Westinghouse Electric in 1888 earned him substantial money and became the cornerstone of the polyphase system the company would market. Trying to develop inventions that he could patent and market, Tesla experimented with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. He also built a wireless-controlled boat, one of the first to be exhibited. Known as an inventor, Tesla demonstrated his . He also often dined at Delmonicos.[6] Throughout the 1890s, he continued his ideas for wireless lighting and worldwide wireless electrical power distribution in high-voltage, high-frequency power experiments in New York and Colorado Springs. In 1893, he made statements about the possibility of wireless communication with his devices. After Wardenclyffe, Tesla worked with a series of inventions in the 1910s and 1920s with varying degrees of success. Having spent most of his money, Tesla lived in many hotels in New York and left behind unpaid bills. He died in New York in January 1943.[8] Tesla's work fell into relative obscurity until after his death in the 1960s at the General Conference on Weights and Measures, the SI unit of magnetic flux density was called the tesla.[9] This situation led to the re-emergence of interest in Tesla since the 1990s.[10]

Kadir

2021-11-23 16:40:01 UTC

Akkurt

Ülkü Beyza-Ahmet-korona virüs aşısı-2021

2021-11-23 16:57:54 UTC

UĞUR ŞAHIN VE ÖZLEM TÜRECI ABD merkezli Pfizer ile birlikte geliştirdikleri konumuz açısından %90 başarıya ulaştıklarını açıklayan Almanya merkezli BioNTech şirketi aile illerin Türkiye'den Almanya'ya göçmüş Özlem türeci ve Uğur Şahin tarafından 2008'de kuruldu evli olan tür Ece ve Şahin çiftinin bu başarısı son yıllarda güç konusunu tartıştığı Almanya'da göçmenlerin ülkeye ne kadar faydalı olabileceğine dair bir örnek olarak gösteriliyor. Avrupa Reform Merkezi baş ekonomist Christian Odandahl haberini aldığında yaptığı Twitter paylaşımında Almanya uzun süre göç konusu ne kadar açık olması gerektiği konusunda konusu ile uğraştım ve savaş sonrasındaki misafir işçiler programın hep sorgulandı dedi ve ekledi Uğur Şahin'in babası Köln'deki Ford fabrikasında çalışmaya gelen bu misafir işçilerden biriydi şimdi oğlu dünyayı saran salgına son veren kişi oldu.
UĞUR ŞAHİN KİMDİR
Bilmeceydin CEO'su olan Profesör Uğur Şahin aynı zamanda Mainz Üniversitesi Tıp Merkezi'nde çalışıyor 55 yaşındaki Şahin daha önce de eşiyle birlikte kurucusu olduğu Ganymed adlı ilaç şirketinin bilimsel tavsiye kurulu başkanı olarak görev yapıyordu immünolog immünolog ve onkolog olan Şahin İskenderun'da doldurduktan sonra 4 yaşında ailesi ile birlikte Almanya'ya görüşmüştü babası Köln 'deki Ford fabrikasında çalışan Şahin'in hayali Doktor olmaktı bir fabrika işçisinin çocuğu iş için ulaşmış sor bu hayali gerçek klan Şahin bugün eşi ile birlikte Almanya'nın en zengin 100 kişisi arasında İngiliz Telegraph gazetesine göre çift ilk şirketleri Ganymed'i 1,4 milyar euro ya satmıştı. BioNTech 'in piyasa değeri ise 20 milyar euroyu açtı Telegraph, kanser tedavisini odaklanan şirketin pandemi ile birlikte koronavirüsle Mücadele'ye odaklandığını aktarıyor :
Ocak ayında Profesör Şahin ekibin toplayarak yeni görevimiz bu virüsü yenmek bu insani bir görev dedi.
Cari başarısına rağmen Üniversitede ders vermeyi de bırakmayan Şahin toplantılara elinde bisiklet kaskı ile gidiyor ve bu akademisyen arkadaşları tarafından mütevazi biri olarak nitelendiriliyor.
ÖZLEM TÜRECİ KİMDİR
Şirketin kurucularından Dr Özlem türeci 10 yıl boyunca klinik ve bilimsel danışma kurulunda görev yaptıktan sonra 2018'de BioNTech Tıp şefi oldu.
53 yaşındaki tür acı aynı zamanda kanser İmmünoterapi Derneği Başkanı
Babası İstanbul'da bir doktor olan türeci Ailesi doğumundan önce Almanya'ya göçmüş sürece işi ile hamburger da çalışırken tanışmış sürece düğün günümüzde bile robu laboratuvarda çalıştık diyor çift Ganymed şirketinde modifiye edilmiş genetik kodlarla bağışıklık sistemine kanserle mücadele etmeyi öğreten çalışmalar yapıyordu bu uygulamada bağışıklık sistemini kanserli hücrelerin vücuda giren bir virüs gibi algılayarak onlarla ortadan kaldırmaya çalışıyor.
Ganymed'i satışları Almanya'da o tarihe kadar en büyük Tıp şirketini satmış olmuştu. BioNTech şirketinde de mRNA teknolojisini kullanarak aşağı alanında bir devrim yapmayı hedefleyen çift şimdi bu yönetimi koronavirüs aşısı için kullanıyor.Euronews 'e göre çift koronavirüs salgını küresel bir pandemiye dönüşmeden önce bunu gerçekleşeceğini öngören 25 yıldır geliştirdikleri Bu yöntemle derhal aşı çalışmalarına başlamaları gerektiğine karar vermiş yönetim kuruluna acil toplantıya çağıran ikili içinde yaşananların tüm dünyayı etkileyen etmeyeceklerini düşünen yöneticileri ikna etmek için çaba sarf etmiş.

GÜLER DEMİR MUALLA ERSEZGİN MİDDLE SCHOOL

2021-11-23 18:54:28 UTC

airplane or aircraft, air in the air, thanks to the pressure difference between the lower and upper surfaces of the partsairfoil, especially the in the air, thanks to the pressure difference between the lower and upper surfaces of the A motorized aircraft that can rise and advance by clinging.

2021-11-24 11:02:10 UTC

It means that the Sumerians had drawn to the civilians. His writing consists of 3500 BC. The Sumerians who lived in Mesopotamia were thus invented as they were first taught. The Sumerians, who used the civil script for the first time 5500 years ago, are the first civilization to find it.

Asil-Ahmet-yazının icadı-MÖ 3500

2021-11-24 11:09:06 UTC

Yağızhan-Ahmet roketin icadı-1926

2021-11-24 11:11:25 UTC

Robert Hutchings Goddard (October 5, 1882 - August 10, 1945) was an American professor of physics and scientist, one of the pioneers in the production of controlled liquid propellant rockets. He launched the world's first liquid-fueled rocket on March 6, 1926. That's why he is called the father of rockets.

Oğulcan-Ahmet-Antibiyotiğin icadı-1928

2021-11-24 11:16:59 UTC

Alexander Fleming's discovery of the antibiotic in 1928 found a solution to various diseases and people were prevented from losing their lives due to diseases.

Zeren-Ahmet-İlk görülen hücre-1665

zerengunbati — 2021-11-24 11:17:14 UTC

Robert Hooke used the light microscope he had developed in 1665 to examine a thin structure he took from the cork. He used a thin structure from the cork he saw while examining the bottle cork. He used the hollow chamber-shaped structures he saw while drinking the cork, called cells.

MİRAY-AHMET-DNA ONARIMI-1997

turalhanife87 — 2021-11-24 11:28:54 UTC

Sancar, who has been working at the University of North Carolina in the USA since 1997[4], is known for his pioneering in biochemical approaches used in the identification of many parts of DNA repair for the last 20 years.[5] He is also the first American Turkish to be elected to the US National Academy of Sciences along with Mehmet Özdoğan. Aziz Sancar won the Nobel Prize in Chemistry in 2015 for his research mapping how cells repair damaged DNA and preserve genetic information.

Güler-Ahmet-Matematik ve geomatrinin bulunuşu MÖ 3000

2021-11-24 18:10:46 UTC

 It is known that mathematics played an important role in scientific activities in ancient times, and various tribes such as ancient Egyptians, Mesopotamians and Indians were engaged in mathematics.

The development continued as a result of Tales, one of the most important names of Greek mathematics, learning geometry during his stay in Egypt and teaching this science to those around him. Known as the father of numbers, Pythagoras' famous theorem[32] placed him in a prominent place among the greatest scientists of his time.

1989 - Invetion of the Internet (Tim Berners)

mehmetugurludavran — 2021-11-25 09:25:10 UTC

Berners-Lee was born on 8 June 1955 in London, England,the eldest of the four children of Mary Lee Woods and Conway Berners-Lee; his brother Mike is a professor of ecology and climate change management. His parents were computer scientists who worked on the first commercially built computer, the Ferranti Mark 1. He attended Sheen Mount Primary School, and then went on to attend south-west London's Emanuel School from 1969 to 1973, at the time a direct grant grammar school, which became an independent school in 1975. A keen trainspotter as a child, he learnt about electronics from tinkering with a model railway. He studied at The Queen's College, Oxford, from 1973 to 1976, where he received a first-class Bachelor of Arts degree in physics.While at university, Berners-Lee made a computer out of an old television set, which he bought from a repair shop.

Why he is so important?

He devised and implemented the first Web browser and Web server, and helped foster the Web's subsequent explosive development. He currently directs the W3 Consortium, developing tools and standards to further the Web's potential. In April 2009, he was elected as Foreign Associate of the National Academy of Sciences.

ALEXANDER GRAHAM BELL RAMAZAN-AHMET MUALLA ERSEZGİN-1870-1880

ibrahimtopal054 — 2021-11-25 15:00:56 UTC

Florentine Guiseppe Meucci invented the telephone for the first time in 1871. However, after losing its patent rights, the first telephone was officially invented in 1876. In addition, Alexander Grahambell was the first person to speak on the invented telephone. As a result of research carried out in 1875, it was discovered that human voices or other sounds could be transmitted through a wire.

In fact, this discovery was completely accidental. Mr. Watson accidentally discovered that it was a good communication device for sounds while dealing with strings. Despite many attempts, Alexander Grahambell did not give up and succeeded in inventing the telephone in 1876.

Yavuz Selim ACAR/Mualla Ersezgin Secondary School/S.D.

2021-11-25 21:20:46 UTC

CAHİT ARF (1910-1997)

Cahit Arf has gained world fame with his work on algebra. His studies on the solubility of synthetic geometry problems with the help of rulers and compasses brought the theorem known as the "Hasse-Arf Theorem" to the science of mathematics, as well as the studies mentioned in the literature such as Arf invariant and Arf rings related to the invariants that occur in the classification of the quadratic forms of objects.

HULUSİ BEHÇET

2021-11-27 09:24:49 UTC

Behçet hastalığını tarif eden ilk bilim adamı.
1937 yılında,bir kan damarı enflamasyonu (vaskülit) hastalığı olan ve bu gün kendi adıyla anılan Behçet hastalığını tarif eden bir bilim adamıdır.

HULUSİ BEHÇET-Yavuz Selim ACAR-Mualla Ersezgin Secondary School-S.D.

2021-11-27 09:42:00 UTC

first scientist to describe Behçet's disease.

He is a scientist who described Behçet's disease, which is a blood vessel (viskülit) inflammation disease in 1937 and which is named after him today.

Yavuz Selim ACAR / Mualla Ersezgin Secondary School / S.D.

2021-11-27 10:17:31 UTC

HULUSİ BEHÇET
First scientist to describe Behçet's disease.

He is a scientist who described Behçet's disease, which is a blood vessel inflammation disease in 1937 and which is named after him today.

Akşemseddin (Gül Kesgin- Hocalar İmam Hatip Secondary School)

gulkesgin51 — 2021-11-29 10:17:31 UTC

Akşemseddin worked in the fields of medicine and pharmacy, as well as in science and mysticism. However, there is no clear information in the sources about who and how Akşemseddin learned the science of medicine. Related to this, Scottish orientalist Elias John Gibb, in his History of Ottoman Poetry, records that Akşemseddin acquired his knowledge in the field of medicine during the years he was with Hacı Bayram Veli and refers to him as a scholar and a blessed person.[19] It is stated that Akşemseddin, who was the physician of not only physical diseases but also mental diseases, also cured mental diseases.

(Gül Kesgin- Hocalar İmam Hatip Secondary School)

gulkesgin51 — 2021-11-29 10:22:34 UTC

He was closely interested in astronomy and mathematics.

He is known as one of the madrasa scholars of the Fatih period.

He drew a map of the moon.

He has done research in the field of space.

He demonstrated that the Moon is a satellite and reflects the rays it receives from the Sun.

He made original studies in the field of space and space science.

Bahar Akkoyunlu/ Mualla Ersezgin Secondary School/ Selvihan Döner

2021-11-29 14:14:13 UTC

2021-11-30 18:46:12 UTC

EVENT: Invention of the whell.

DATE: It was invented between 3500-4000 BC.

IMPORTANT FOR HUMANITY: It has made important contributions to the development of transportation. This has increased the speed of cultures and knowledge.

Ömer Fuat Uğur/Mualla Ersezgin Secondry School /Selvihan Döner

2021-12-01 19:36:55 UTC

André-Marie Ampère est né le 20 janvier 1775 à Lyon et est mort à Marseille le 10 juin 1836. C'est un mathématicien, physicien, chimiste et philosophe français. Il a travaillé sur de nombreux domaines des sciences tels que l’électricité, le magnétisme, les affinités chimiques, l’histoire naturelle, la botanique ; il s'est aussi intéressé à la poésie et à la métaphysique . Ses découvertes concernent : l'électromagnétisme et la chimie.En 1820, il étudie la relation entre magnétisme et électricité. Il découvre que la direction dans laquelle se déplace l'aiguille d'une boussole dépend de la direction du courant électrique qui circule. Il a découvert l'unité des ampères dans le domaine de l'électricité. Ce qui est une des grandes trouvailles dans l'histoire de la science.Ces travaux fondent l'électrodynamique et influencent considérablement la physique du XIXe siècle.

2021-12-02 11:07:37 UTC

André-Marie Ampère was born on 20 January 1775 in Lyon and died in Marseille on 10 June 1836. He was a French mathematician, physicist, chemist and philosopher. He worked on many fields of science such as electricity, magnetism, chemical affinities, natural history, botany; he was also interested in poetry and metaphysics. In 1820, he studied the relationship between magnetism and electricity. He discovered that the direction in which the needle of a compass moves depends on the direction of the electric current flowing. He discovered the unit of amperes in electricity. This was one of the great discoveries in the history of science and was the foundation of electrodynamics and had a considerable influence on 19th century physics.

2021-12-02 11:08:35 UTC

Antoine Laurent Lavoisier est né en 1743 et mort en 1794.
C'est un chimiste, philosophe et économiste français, souvent présenté comme le père de la chimie moderne.
C'est lui qui à inauguré la méthode scientifique, à la fois expérimentale et mathématique.
Antoine Lavoisier a découvert l'oxydation, des composants de l'air et de l'eau, de l'état de la matière.
Il a inventé le nom, l'azote et l'hydrogène pour renverser la théorie phlogistique.
Mais il a surtout traduit des réactions dans les équations chimiques qui respectent la loi de conservation de la matière, donnant à celle-ci une solide assise expérimentale.

Antoine Laurent Lavoisier was born in 1743 and died in 1794.
He is a French chemist, philosopher and economist, often presented as the father of modern chemistry.
It is him who inaugurated the scientific method, both experimental and mathematical.
Antoine Lavoisier discovered the oxidation, the components of air and water, the state of matter.
He invented the name, nitrogen and hydrogen to reverse the phlogiston theory.
But above all he translated reactions into chemical equations that respected the law of conservation of matter, giving it a solid experimental foundation.

Serra Kahya /Mualla Ersezgin Secondary School/sd

2021-12-02 16:39:57 UTC

2021-12-02 16:41:48 UTC

Defne Erçin /Mualla Ersezgin Secondar School/sd

The Invention Of Writing/Hatice Melek KILIÇ/Mualla Ersezgin Secondary School/S.D.

2021-12-08 19:35:27 UTC

1665. Robert Hooke describes cells. IES BFO

wirdou — 2021-12-13 08:20:10 UTC

The invention of the first microscopes led to a major change in Biology. Once we discovered that we are made of cells, we realised that there was a microscopic world around us, full of surprises.

1859. Charles Darwin publishes "The Origin of Species". IES BFO

wirdou — 2021-12-13 08:23:49 UTC

Even though transformation of species was an idea that had been proposed since the beginning of the XIX century, it was Darwin's book the one that ended up leading a change in the minds of most scientists, rejecting old ideas like fixism and catastophism.

İbni Sina / Sinop Bahçeşehir College

mugeustaoglu — 2021-12-16 18:08:06 UTC

Ibn Sina was born in the village of Efşene (Uzbekistan) near Bukhara in 980. He became famous with his book El-Kanun fi't-Tıb (The Law of Medicine), which has been the main source work in the field of medicine for seven centuries, and this book has been used in European universities for 17 years. Until the middle of the 19th century, it was taught as a basic work in medical science.

1906.Traian Vuia- Daniela Guicin/Liceul Tehnologic Nr 1 Balș/Romania

2021-12-20 07:24:06 UTC

Traian Vuia or Trajan Vuia ( August 17, 1872 – September 3, 1950) was a Romanian inventor and aviation pioneer who designed, built and tested the first tractor monoplane. He was the first to demonstrate that a flying machine could rise into the air by running on wheels on an ordinary road.He is credited with a powered hop of 11 m (36 ft) made on March 18, 1906, and he later claimed a powered hop of 24 m (79 ft).Though unsuccessful in sustained flight, Vuia's invention influenced Louis Blériot in designing monoplanes. Later, Vuia also designed helicopters.

Archimedes.207BC-212BC-Daniela Guicin/Liceul Tehnologic nr 1 Balș/Romania

2021-12-20 07:28:44 UTC

Archimedes c. 287 BC – 212 BC.A man ahead of his time!Mathematician, physicist, astronomer, engineer, inventor, and weapons-designer.
Founded the sciences of mechanics and hydrostatics, calculated pi precisely, devised the law of exponents, created new geometrical proofs, invented numerous ingenious mechanical devices and more.

EcrinHoşbay\Mualla Ersezgin Secondary School/SD

2021-12-21 09:02:52 UTC

Have you ever taken a walk in the snow and looked carefully at the snowflakes that were quietly placed on your jacket? Have you noticed that while snowflakes, all different from each other, are falling on you, they all have the same geometric shape? Each one has different details, but it is always hexagonal… And while trying to figure out why all the snowflakes are hexagonal, did you turn your guesses into a booklet and present it to a friend as a New Year's gift? Maybe you didn't, but that's how Johannes Kepler's adventure in crystallography began.

A portrait of Kepler made in 1610.
The famous astronomer and mathematician Johannes Kepler is often associated with his work in astronomy. But in addition to his work in astronomy, Kepler also has studies in quite different fields such as crystallography. His observations on snowflakes, which we have narrated above, led Kepler to undertake the first serious studies in the field of crystallography. Concerning crystallography before Kepler, BC. There are records kept by the Chinese in the 2nd century and the philosopher Albert Magnus in the west in the 13th century. However, the first serious work that can be considered serious on crystallography belongs to Kepler. In the following years, many scientists such as René Descartes and Robert Hookes carried out other studies supporting Kepler's studies on snowflakes.

Kepler presents his 24-page work, titled "On Six-sided Snowflakes" (original title: De nive sexangula), to his friend Johannes Matthäus Wackher von Wackenfels as a Christmas present. In this booklet, written in 1611, he tries to explain why snowflakes have a hexagonal shape.

In the introduction, Kepler describes the interesting geometry of the snowflake that fell on his jacket as he took a stroll on Prague's Charles Bridge. He then states, “There has to be a reason why the snowflake is hexagonal. It can't be by chance. Why always six? The reason should not be sought in the essence of the material, but in a factor.” he tells in his words. He thinks that there must be a mechanical effect at the root of this factor.

Kepler's prediction turns out to be correct. He confirms this with the English mathematician Thomas Harriot, who served on Walter Raleigh's ship as a navigator between 1584 and 1585. As Harriot ponders how he can stack the cannonballs on Raleigh's ship to take up less space, he inevitably begins to theorize about how the spheres of equal radius can be arranged more tightly. He shared these theories with Kepler between 1606 and 1608.

Thinking in the axis of Harriot's ideas, Kepler states in his published study that the hexagonal arrangement for snowflakes is the most tightly packed arrangement possible. This view of the most tightly packed sequence is also known as Kepler's conjecture. The mathematical proof of this conjecture was proved by the mathematician Thomas C. Hales from the United States in 1998, years after Kepler, and published 7 years later.

Kepler's prediction about the hexagonal array is indeed correct. Because snowflakes are made up of a hexagonal crystal, and other hexagonal crystals arranged around that crystal to form a larger hexagon. But while Kepler was right about the hexagonal arrangement of the spheres, his theory fell short of explaining the gaudy and stick-like shapes of snowflakes. It's true that this arrangement produces neat hexagons, but snowflakes don't necessarily have straight edges: On the contrary, they often appear in branched, ornate shapes.

However, Kepler concludes this subject, which he has not come to a conclusion, by stating that more research is needed: “As I write this, it has started to snow again and this time it is more intense than before. And I will be studying these grains more intensely.”

How Are Snowflakes Formed?
Snowflakes are the solid form of water particles that crystallize in the atmosphere and reach the earth's surface. In cold weather, water cools and solidifies as it falls from the clouds, revealing snowflakes.

Snowflakes nucleate and grow on particles in the air, such as silicate mineral fragments from land, that offer a suitable surface for heterogeneous nucleation at temperatures above -40°C. If there is a relatively high amount of water vapor in the air, snowflakes will grow rapidly and by branching, exhibiting an indented structure. In relatively dry weather, however, snowflakes are not so pompous, they develop more simply.

Not only the amount of water vapor in the air, but also temperature differences in the atmosphere can affect the shape of snowflakes. As snowflakes pass through the layers of the atmosphere and solidify due to temperature differences, the direction in which they grow can also change. In other words, the more different temperatures a water drop encounters as it falls, the more complex branches it grows.

2021-12-21 15:36:49 UTC

Niels BOHR (T.zuhal/Pınar Kaplan Turgut Özal Secondary School)

2021-12-28 10:55:39 UTC

He created the atomic model, which is named after him, for the first time in determining the atomic structure of quantum theory. He played a leading role in the development of quantum physics for nearly 50 years. He also developed the "liquid droplet model" of the atomic nucleus.

51. Photo(Tİrem/Pınar Kaplan Turgut Özal Secondary School)

2021-12-28 10:59:37 UTC

Rosalind Franklin took the photo of the B form of DNA in 1952. She later showed this photo to James D. Watson without Wilkins Franklin's permission. On February 28, 1953, Watson and Crick presented the work explaining the helical structure of DNA. But they did not refer to Franklin. They also received the Nobel Prize in Physics in 1962.

Tİrem/Pınar Kaplan Turgut Özal Secondary School

2021-12-28 11:06:15 UTC

Albert Einstein/The Theory of Relativity (1905) The theory of relativity claims that the events of time, space and motion are not independent of each other, on the contrary, they are an interconnected relative whole. It explains that object is connected with time, time with object, space with movement, movement with space, that is, they are all connected with each other.

Leonhard Euler (T.zuhal/Pınar Kaplan Turgut Özal Secondary School)

2021-12-28 11:07:42 UTC

Euler is a Swiss mathematician and physicist. Euler has so many discoveries that scientists joke with colleagues who developed a theory that he was "the first person after Euler to discover it." He also found the constant e, which is used in mathematics.

TFatih/Pınar Kaplan Turgut Özal Secondary School

2021-12-28 11:19:57 UTC

Elon Musk (born Elon Reeve Musk, June 28, 1971) is an engineer, industrial designer, technology entrepreneur, and philanthropist[6][7][8][9][10] Apart from the Republic of South Africa where he was born, he is a citizen of Canada and the USA[11] and still lives in the USA, where he immigrated at the age of 20.[12][13] Elon Musk is also the founder, CEO, and chief of engineering and design offices of SpaceX;[14] early investor,[15][note 1] CEO and product architect of Tesla;[18][19] of The Boring Company founder;[20] Co-founder and first co-chairman of Neuralink and OpenAI.[21]

Marie Curie (T.Derya/ Pınar Kaplan Turgut Özal Secondary School)

2021-12-28 11:34:14 UTC

Polish physicist and chemist. He discovered radioactivity during his experiments with uranium and was awarded the Nobel Prize in Chemistry. He discovered the radioactive property of thorium and decomposed the element radium. He is the founder of the science of radiology.

Louis Pasteur (T.Derya / Pınar Kaplan Turgut Özal Secondary School)

2021-12-28 11:37:40 UTC

French microbiologist and chemist. He found the rabies vaccine. He proved that microorganisms are responsible for fermentation and infectious diseases. He disproved the theory of spontaneous generation.