What is a battery? Electricity
A Leyden Jar - an early kind of electric battery In the early 1800s AD, about 200 years ago, scientists in Denmark and Britain figured out another way to make magnets. [...]
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08, 2017
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08, 2017
Enlightenment Science in Europe
Gottfried Leibniz, a German mathematician - Enlightenment science What set off the Enlightenment? By 1650 AD, Europeans understood Islamic algebra and trigonometry better. Then they combined that with the exciting invention of the telescope and microscope (thanks to [...]
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08, 2017
European science in the 1800s
European boys at school in the 1800s More schools and more scientists In the first half of the 1800s AD, countries in northern Europe like France and Britain forced other countries to give them [...]
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07, 2017
Sine waves – trigonometry – math
Sine wave In order to save energy, many, many things in nature move in a kind of repeated pattern we call a sine wave: water waves, sound waves, light waves, [...]
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06, 2017
Copper – Atoms, Elements, and Chemistry
Diagram of a copper atom What is copper? Copper is a kind of atom that has only one electron in the outermost ring. What's an electron? What are atoms? A [...]
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06, 2017
Aluminum – Atoms and Chemistry
Diagram of aluminum atom Aluminum is one of the heavier atoms that forms inside a red giant star after a star begins to run out of fuel. An atom of [...]
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05, 2017
What are neurons? Nervous system evolution and biology
A network of neurons One-celled creatures like bacteria don't have neurons, because they can communicate within themselves through the use of enzymes, but all multicellular animals do have neurons. The [...]
