What are some mind-blowing technologies that exist that most people don’t know about?
Those little black dots on car windows — everybody who’s ever sat in a car has noticed them, but nobody ever told us what they are for (if…
If you poured water into space, would it freeze or evaporate first?
Why should it freeze? Contrary to popular misconception, space is not cold. Being a near-perfect vacuum, space itself has no temperature at all. If a given object is in space…
If we could travel 1 billion times faster than the speed of light, will we reach other galaxies in seconds, or what would happen?
Here’s the thing, If you travel to the next galaxy at the speed of light YOU will arrive instantaneously If you travelled FASTER than light .. if were…
For billions of years Earth was uninhabitable. Is it possible that planets in our solar system are going through similar phases and will in the far future be able to sustain life?
Earth was created 4.5 billion years ago. Life started almost immediately as Earth cooled enough and is likely around 4 billion years. The Early Earth was a very…
How come distilled water hasn’t replaced transformer oil as a high voltage insulator?
Pure distilled water is an excellent insulator with high dielectric strength that is greater than mineral oil, it is less expensive than oil and conducts heat better. However,…
If you dropped a ball of tungsten into a volcano, could it sink down to the earth’s core?
I really like this question. It’s an opportunity to completely blow your mind about volcanoes. Here we have a diagram of volcanoes that everyone is shown in school:…
Why were dinosaurs so large in size? What in the evolutionary process caused them to be of such large size? Why are there no living organisms of such size today?
Before we start, what you need to realise is that dinosaurs were definitely large, but not so large. You probably know the numbers: the largest land mammals ever are around…
Is the Apollo 11 moon mission a hoax since a 20 W radio signal cannot propagate from the moon to the earth and form a detectable signal?
No, Carl. It’s not a problem to send a 20 W radio signal from the Moon to the Earth, because NASA engineers thought of that. They gave the…
If all the ice melted in the world, would the world actually be submerged or only a few places by the shores?
This is a post melt map of North America courtesy of National Geographic. And this is Europe The light blue on the ocean and sea coasts is currently…
What will the universe be like in 100 trillion years?
In 100 trillion years, galaxies will contain fascinating astronomical objects that we cannot encounter now, and overall, the Universe will be a different and relatively unfamiliar place. We…