ANSWERS BY ALEX

The sky appears blue to us because of the manner in which gas molecules in the atmosphere interact with the visible light which reaches...

Cornflakes were invented by John Harvey Kellogg. Kellogg believed that sexual desire was unnatural and unhealthy and hence we created a...

Perhaps the best evidence for evolution is found in the similarities of DNA sequences between species. You can determine which species a...

This question frames the issue in a slightly misleading way. Firstly, humans are primates, a large order of many hundreds of species but...

Our eyes work together to produce an overlapping visual field. Some scientists have proposed that this is what provides humans with depth...

It’s difficult to credit the invention of the internet to just a single person – the web was, and still is, being continuously developed,...

This is an extremely common interview question so if you haven’t come across it yet, the chances are that you will. On the face of it,...

Have you ever received a phone call from an anonymous or withheld number, answered the call and had the line disconnect immediately? It...