Articles on Curious Kids US

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Both ‘Maze War 'and 'Spasim’ used vector graphics, which are images made by drawing lines directly between points on the screen. Mironov Konstantin/iStock via Getty Images

What was the original first‑person shooter? Two largely forgotten computer games from the 1970s ushered in the genre

The games created a new way of experiencing video games by building a 3D world in which events could unfold beyond the player’s line of sight.
Black holes have a gravitational pull so strong that no objects close to them can escape. Victor de Schwanberg/Science Photo Library via Getty Images

Do you need to worry about the Sun turning into a black hole?

Some stars turn into black holes at the end of their lifespans, once they stop burning the fuel in their cores.
Making a pitcher of iced tea can be a physics experiment. invizbk/iStock via Getty Images Plus

How do ice cubes cool a drink?

Energy transfer is the secret ingredient that makes iced tea a particularly refreshing drink on a hot day.
Under usual, everyday conditions, carbon atoms exist as stacks of hexagonal sheets, but extreme pressure and heat rearrange them to form diamonds. Kateryna Kon/Science Photo Library via Getty Images

Can we remove or decrease spaces between atoms or molecules?

Turns out, changing the way atoms and molecules are arranged in a substance can give it new and fascinating properties.
Hand development is shaped by evolution, biology and environment. Cunaplus_M.Faba/iStock via Getty Images Plus

Why are our fingers different lengths?

Your fingers’ lengths are just one feature of many that let your hands grasp, press, pull and otherwise interact with the world.
The active galaxy Centaurus A, with jets emanating from the central black hole. ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray)

Can you make a black hole in a laboratory?

An astronomer explains why artificial black holes are pure science fiction – at least for now.
Applying eye black is an important part of prepping for a game for some players. Maddie Malhotra/Boston Red Sox via Getty Images

Why do baseball players put a black mark under their eyes?

As one piece of more than a century of baseball traditions, eye black is part science experiment, part routine and part uniform.
Hatshepsut (c. 1505–1458 B.C.E.) was Egypt’s second female ruler. She often is depicted as a sphinx or wearing a beard, a traditional sign of pharaonic authority. G. Dagli Orti/De Agostini Editorial via Getty Images

Who was the first transgender person?

There is evidence of people who crossed gender boundaries even in ancient civilizations, though the terms naming them have evolved over time.
The fate of a person’s debts after they die depends in part on what they owned. MicroStockHub/iStock via Getty Images Plus

What happens to debt when someone dies?

Whether or not there’s a will, the results are the same.
Watch out! There are high-voltage wires here! Igor Zubkov/iStock via Getty Images Plus

What are those orange balls on some power lines?

Aviation marker balls don’t help with electricity flow or improve the efficiency of the power lines. But they do have a very important job.

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