Questions |
Votes |
How did life on Earth would be if the giant meteorite had not struck us 64 million years ago? |
16 |
Why do we dream? |
15 |
Is there life elsewhere? |
15 |
How ancient Greek made the Antikythera mechanism? |
15 |
Can a black hole suck a star or a planet? |
10 |
How did the big bang happen? |
10 |
How was the eye of Jupiter formed? |
10 |
How was the universe created? |
10 |
How was lava created? |
9 |
Why do we have earthquakes? |
9 |
How come heavy ships do not sink? |
8 |
Why don?t we get dizzy as the earth goes around? |
8 |
Why do planets not collide? |
7 |
How did NASA engineered Juno to arrive on Jupiter? |
6 |
Why does 0 (zero) comes before 1 (one)? |
6 |
What causes lightning? |
6 |
Why are tears salty? |
6 |
Why is gravity different throughout the universe? |
6 |
Why do we have the ozone layer? |
6 |
Why can?t we breathe in space? |
6 |
Why are there so many stars? |
6 |
Why can?t we fly? |
6 |
How the voice transfer throw telephone? |
6 |
Why does a volcanic eruption cause, in some cases, an earthquake? |
6 |
Why do we come from the evolution of monkeys? |
5 |
Why don’t we feel the earth moving? |
5 |
Why am I here? |
5 |
Why doesn?t the sea freeze at Christmas? |
5 |
Why do planets rotate around the sun and not the other way around? |
5 |
How is a rainbow formed and why does it appear after a rainfall? |
5 |
Why did the dinosaurs disappear? |
5 |
Why do I feel dizzy when I spin? |
4 |
Why is our planet named Earth? |
4 |
Why is the sky blue? |
4 |
Why doesn’t gravity affect clouds? |
4 |
Why do we run at different speeds? |
4 |
How far out you have to travel from Earth to gravity not work anymore? |
4 |
Why Mars is red? |
4 |
Why the sun is so bright? |
4 |
Why can a tiny bullet kill someone? |
4 |
Why can?t we hold our breath longer underwater? |
4 |
What causes storm? |
4 |
How was time invented? |
3 |
Why are some people colour blind? |
3 |
Where does thunder come from? |
3 |
How do colours exist and why are some people colour blind? |
3 |
Can we travel to other galaxies? |
3 |
Why are stars so far away? |
3 |
Why are humans born so small? |
3 |
Why do we have technology? |
3 |
Why are there so few volcanoes? |
3 |
Why do rainbows create arcs? |
3 |
Why do sea weeds go upwards? |
3 |
Why don?t birds sweat when they fly for a long time? |
3 |
Has the air a weight? |
3 |
How does evolution work? |
2 |
Why are countries all different shapes and sizes? |
2 |
Why is a balloon heavier with air inside? |
2 |
Why the sun is so hot? |
2 |
What do we make robots for? |
2 |
Why are electrons so small? |
2 |
Why is there gravity? |
2 |
Why is a lemon sour? |
2 |
Why does a coin put at the bottom of an empty bowl is not visible, but it becomes visible if we fill the bowl with water? |
2 |
How do plants feed themselves? |
2 |
How does the Earth revolve around the sun? |
2 |
Why can?t animals make their own food? |
1 |
Why salt affecting freezing point of water? |
1 |
How much light do a seed need to germinate? |
1 |
Why do we flow in space? |
1 |
Why don?t we fall into space when we travel around the earth? |
1 |
Why does the earth go round and round? |
1 |
Why is lava liquid and flows? |
1 |
Why do electric short-circuits create sparks? |
1 |
How can bees fly with such tiny wings? |
1 |
Why can people lie on “Fakir?s Bed”? |
1 |
What is the air? |
1 |
What?s the origin of the clouds? |
1 |
Why is helium lighter than air? |
0 |
How do planes and helicopters know where they are and which way to go? |
0 |
Why don?t appliances work during a blackout? |
0 |
Is pressure necessary to launch the rocket? |
0 |
Why are potatoes so common in some countries? |
0 |
Why does the current flow in a closed circuit and not in an open one? |
0 |
Why and how can an image be projected through a magnifying glass? |
0 |
How does a hot air balloon fly? |
0 |
Why don?t oil and water mix? |
0 |