Why Doesn't Super Glue go Hard in the Tube?
What's the difference between mist and fog? Would 1 kilometre on our orbit make the difference between life and death on Earth? Is the Earth only planet capable of sustaining life in the Universe? How do washing powders and detergents get clothes clean? How does sunlight and seawater lighten hair? How deafening was the Big Bang? Will rainwater wash clothes better than tapwater? Why does water issuing from a tap when you first turn it on, look white with tiny bubbles? Why doesn't Super Glue go hard in the tube? Are gravitational waves audible?