Momentum – Physics
This truck has a lot of mass, and it's going fast, so it has a lot of momentum Momentum describes how strong a moving thing is. Things that aren't moving [...]
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08, 2017
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08, 2017
What is inertia? Physics – Science
The bus is heavy, so it's hard to get it moving. Who first wrote about inertia? A law of physics first suggested by the Uzbek scientist Ibn Sina about 1000 AD states that [...]
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08, 2017
How old is the Earth? – Astronomy
Earth from space: How old is the Earth? When did the Earth form? Like Mercury and Venus and the other planets that go around the Sun, the Earth probably formed a little more than four and a [...]
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08, 2017
Black holes – Space science – Physics
A starry sky with the Milky Way galaxy (thanks to Bernd Nies) - there are probably black holes in there somewhere! What is a black hole? A black hole is [...]
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08, 2017
Acceleration – simple physics
Tegla Loroupe, Kenyan runner Acceleration is how much your speed changes in a certain amount of time. Picture yourself standing in front of your house. When you stand still, your acceleration [...]
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08, 2017
Newton’s First Law of Motion – Physics
Isaac Newton, mathematician and physicist About 1000 AD, in the Islamic Empire, Ibn Sina came up with the idea that an object moving in a vacuum would just keep moving forever without slowing [...]
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07, 2017
Ibn Sina – Islamic medicine
Where ibn Sina came from: Uzbekistan Ibn Sina and the Samanids in Uzbekistan Ibn Sina (known to Europeans as Avicenna) was a scientist. He was born about 980 AD in the north-eastern part of [...]
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06, 2017
What is the strong nuclear force? Atoms and Physics
Diagram of an iron atom The protons inside the nucleus of an atom all have a positive electrical charge, so they push away from each other. But the strong nuclear [...]
