Relativity by Sara Xhemali https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt en-us 2022-12-19 20:48:19 UTC 2022-12-21 22:18:45 UTC hello@padlet.com xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425219912 2022-12-19 21:45:08 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425219912 LIFE OF ALBERT EINSTEIN piccologiovanna05 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425899537 Albert Einstein was born in Germany in 1879. He was an intelligent child but he also loved music.  In 1896, Einstein went to college in Switzerland, got a job there, and became a Swiss citizen.  Einstein began studying physics in his spare time while working in Switzerland.]]> 2022-12-20 15:28:54 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425899537 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425920038 https://www.youtube.com/watch?v=B6kreUskcpo]]> 2022-12-20 15:50:55 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2425920038 EINSTEIN'S THEORIES giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426029297 Albert Einstein developed two theories.  His theories are useful to give a new view of the fundamental concept of time , space , energy and gravity.

]]> 2022-12-20 17:50:55 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426029297 THE THEORY OF SPECIAL RELATIVITY giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426030481 The first theory is called "Special Relativity " which has 2 laws . 
1- The first : the laws of physics are the same  for all  non-accelerating observers.  
2- The value of the speed of light is CONSTANT]]> 2022-12-20 17:52:22 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426030481 THE THEORY OF GENERAL RELATIVITY giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426031659 In the General Relativity Einstein determinate that massive objects cause a distortion of space and time. ]]> 2022-12-20 17:53:58 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426031659 From this second law there is the origin of the famous equation giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426035739 2022-12-20 17:59:20 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426035739 This equation led to the paradox of the twins. giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426039943
In physics, the twin paradox is a thought experiment in special relativity involving identical twins, one of whom makes a journey into space in a high-speed rocket and returns home to find that the twin who remained on Earth has aged more.]]> 2022-12-20 18:04:27 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426039943 Contributions that Einstein has made to our daily lives giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426083635 2022-12-20 18:57:53 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426083635 GPS Navigators giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426083828
All GPS navigators ,including mobile applications like Google Maps , function by measuring the distance from one point on Earth to one of many satellites orbiting our planet.  The time it takes for the signal emitted by the satellites to reach the receptor is measured to calculate the distance. The Theory of Relativity, explains why clocks on satellites are ahead of those on Earth by 38,000 nanoseconds. It doesn't seem like much, but if these nanoseconds weren't accounted for, GPS systems would be off by kilometers.


https://www.bbva.com/en/four-contributions-einstein-made-to-our-daily-lives/]]> 2022-12-20 18:58:09 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426083828 THE SUN giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426085446 Without Einstein's most famous equation — E = mc^2 — the sun and the rest of the stars wouldn't shine. In the center of our parent star, intense temperatures and pressures constantly squeeze four separate hydrogen atoms into a single helium atom, according to Ohio State University
(opens in new tab). The mass of a single helium atom is just slightly less than that of four hydrogen atoms. What happens to the extra mass? It gets directly converted into energy, which shows up as sunlight on our planet.
https://www.livescience.com/58245-theory-of-relativity-in-real-life.html



]]> 2022-12-20 19:00:08 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426085446 giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426087933 2022-12-20 19:03:34 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426087933 giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426088793 2022-12-20 19:04:37 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426088793 His theories were also used in the creation of nuclear energy and nuclear weapons. giovipero https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426089776 2022-12-20 19:05:49 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426089776 Why is gold yellow? xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426139130 The gold is yellow because, due to the size of gold atoms, its electrons are travelling at over half the speed of light. Einstein’s theory tells us that at these speeds the mass of the electrons increases, which in turn means the energy needed to kick them up to another orbital is reduced.

So lower-energy blue photons are absorbed, and don’t get reflected by the gold. And if blue is removed, we see yellow.

https://www.sciencefocus.com/science/why-is-gold-yellow/

]]> 2022-12-20 20:17:03 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426139130 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426976069  In 1905 he published his "special theory of relativity", while after ten years he published the theory of "general relativity". In 1913 he moved to Berlin and became a professor at the university.  He won the Nobel prize for physics and became famous all over the world.  ]]> 2022-12-21 20:23:19 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426976069 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426976144 Einstein was still living in Berlin when the Nazi Party came to power.  Because he was Jewish, he lost his job and had to leave the country.  He moved to the United States in 1933 and worked at Princeton University. He became a US citezen and remained  in America , where he died in 1955.]]> 2022-12-21 20:23:32 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426976144 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426978549 2022-12-21 20:29:43 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426978549 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426981260 2022-12-21 20:36:50 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426981260 Simultaneity xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426983679 The relativity of simultaneity is the concept that simultaneity is not absolute, but depends on the
observer’s reference frame.]]> 2022-12-21 20:42:47 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426983679 Time Dilation xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426983858 Time dilation is an actual difference of elapsed time between two events as measured by observers
moving relative to each other.]]> 2022-12-21 20:43:15 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426983858 Length Contraction xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426984243 Objects that are moving undergo a length contraction along the dimension of motion; this effect is
only significant at relativistic speeds.]]> 2022-12-21 20:44:18 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426984243 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426985923 2022-12-21 20:49:13 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426985923 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426988033 2022-12-21 20:54:04 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426988033 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426988711 2022-12-21 20:56:21 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426988711 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426991917 2022-12-21 21:06:14 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2426991917 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427001136
https://www.skuola.net/civilta-inglese/einstein-relativita.html

]]> 2022-12-21 21:36:22 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427001136 Einstein's theories , Length Contraction , Simultaneity , Time Dilation xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427001916 Adapted from google classroom knoledge and the photos from google .]]> 2022-12-21 21:38:55 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427001916 Worked by: xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427009424 Coscia Mariachiara
Pero Giovanna
Piccolo Giovanna
Santonicola Maria 
Xhemali Sara 

Classe: VAU

Anno scolastico 2022/2023]]> 2022-12-21 22:04:05 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427009424 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427010618 2022-12-21 22:09:16 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427010618 xhemalisara0 https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427012512  This result appears puzzling because each twin sees the other twin as moving, and so, as a consequence of an incorrect and naive application of time dilation and the principle of relativity, each should paradoxically find the other to have aged less. However, this scenario can be resolved within the standard framework of special relativity: the travelling twin's trajectory involves two different inertial frames, one for the outbound journey and one for the inbound journey.Another way of looking at it is to realize the travelling twin is undergoing acceleration, which makes him a non-inertial observer. In both views there is no symmetry between the spacetime paths of the twins. Therefore, the twin paradox is not actually a paradox in the sense of a logical contradiction.]]> 2022-12-21 22:15:56 UTC https://padlet.com/grotesquekindcorp/ejj85mjw73zp74kt/wish/2427012512