https://padlet.com/kalliyapeou/l5109357tg9gbupf en-us 2022-09-18 17:04:46 UTC 2022-09-18 17:16:25 UTC hello@padlet.com https://padlet.net/icons/png/1f52d.png kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301748654 Between 3300 BC and 1200 BC the Bronze Age was in motion. This is significant because it is when humans worked metal into their tools/weapons for farming and hunting. ]]> 2022-09-18 17:05:42 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301748654 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301748885 Around 246 BC, Archimedes tested two crowns to find the density of gold, later creating the Archimedes’ Principle. This is significant because density could be measured through fluid displacement caused by buoyant force. ]]> 2022-09-18 17:05:58 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301748885 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749021 The first sighting of Halley’s Comet dated back to 240 B.C.E., by Chinese astronomers. This is important because it informed scientists of how comets can appear more than once. Halley’s Comet appears once every 76 years; it was last reported in 1986. ]]> 2022-09-18 17:06:09 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749021 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749153 In 1543, Nicolaus Copernicus states that planets orbit the sun, also known as the heliocentric theory. This is important because it advances our knowledge of the universe. ]]> 2022-09-18 17:06:20 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749153 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749269 In 1609, Galileo Galilei invented the telescope. This is important because it advances the research of space by locating faraway galaxies, planets, and stars. ]]> 2022-09-18 17:06:31 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749269 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749441 In 1618, William Harvey studies the circulation of blood. This is significant because he discovered how blood is cycled through the veins and arteries in the body.

]]> 2022-09-18 17:06:46 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749441 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749605 The Dodo Bird became extinct in the 1600s, the last of its species being killed in 1681. This is significant because after humans expanded into Mauritius, it led to extinction caused by humans. 

]]> 2022-09-18 17:07:00 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301749605 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750008 In 1687, Issac Newton was said to see an apple fall, which led to the discovery of gravity. This is important because we learn how force keeps everything drawn on Earth.]]> 2022-09-18 17:07:32 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750008 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750184 In 1781, William Herschel discovered Uranus, the seventh planet in the solar system. This is important because it was the first planet to be found through a telescope. It also opened the hunt for unknown planets. ]]> 2022-09-18 17:07:47 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750184 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750329 In 1796, Edward Jenner discovered a vaccine for smallpox by injecting cowpox into a 13-year-old. This is important because the body could become immune, as the virus can be deadly. ]]> 2022-09-18 17:08:00 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750329 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750521 In 1866, Alfred Nobel invented dynamite. This is significant because it could be used to make explosives, and help in mining and building industries.]]> 2022-09-18 17:08:14 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750521 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750640 In 1898, radium was discovered by Madame Curie. This is important because the element was shown to transmute. It was also used in radiotherapy to destroy cancer cells.]]> 2022-09-18 17:08:25 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750640 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750781 In 1921, Canadian scientist Frederick Banting produced insulin with patents. This is important because the hormone helps lower blood sugar for individuals dealing with diabetes.

]]> 2022-09-18 17:08:39 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750781 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750894 In 1950, the FDA approved birth control pills. This is significant because it is an effective and safe way to stop pregnancy. It also earned women more freedom. ]]> 2022-09-18 17:08:51 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301750894 kalliyapeou https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301751016 In 1953, DNA structure was discovered by Watson and Crick. This is significant because researchers were able to study genetics, including disorders, as well as disease paths. ]]> 2022-09-18 17:09:02 UTC https://padlet.com/kalliyapeou/l5109357tg9gbupf/wish/2301751016