#589 Where was the first artificial dam?
Where was the first artificial dam? The Jawa Dam in Jordan. Natural dams exist all over the world and can be formed […]
#588 What are runes?
What are runes? Runes were a series of alphabets used by the Germanic peoples between approximately AD 150 and the 17th century. […]
#587 How does animal camouflage work?
How does animal camouflage work? It works by upsetting the edges, mimicking shadows and background, copying shapes, scattering light and countershading, and […]
#586 Can a tortoise live without its shell?
Can a tortoise live without its shell? No. Tortoises and turtles are not just inside their shells. They are the shells. The […]
#585 What causes muscle cramps?
What causes muscle cramps? There are several potential reasons, but nobody actually knows the real reason. Whatever the reason, all cramps happen […]
#584 Why do cars only have five gears?
Why do cars only have five gears? They actually don’t. Some cars have 4 and some cars have 6 or 7. Modern […]
#583 Why are some animals cold-blooded?
Why are some animals cold-blooded? It lets them go for longer without eating, which means they can survive in more inhospitable areas. […]
#582 How high can a plane and a helicopter fly?
How high can a plane and helicopter fly? The world record for the highest a plane has managed to fly after taking […]
#581 What is the difference between a crocodile and an alligator?
What is the difference between a crocodile and an alligator? There are many differences, including their color, size, snout shape, where they […]
#580 How is an addict’s brain different to a non-addict’s?
How is an addict’s brain different to a non-addict’s? They have significant changes in the reward, stress, and self-control parts of their […]