Do carrier aircraft get washed after every flight to remove salt residue?
There were quite a few times when I was climbing into the jet, getting ready to launch off the pointy end, when the chief would tug on my…
Will people in the EU and Canada really stop buying American goods because of the tariffs?
My son works for a company that sells pumps. These are high end pumps. When Trump first announced the tariffs he received a call from a supplier in…
Why can’t the Earth just all be land?
Earth can be just all land, but we wouldn’t be here. It would be inhospitable to complex life. Surprisingly, though, there is a theory that a planet with…
How long does it take for uranium-235 to be safe?
U235 will never be safe for humans, it is a toxic heavy metal. It can cause damage to the brain, nervous system, kidneys, and other body organs if…
Why do we need an escape velocity to lift a rocket into space? Can’t a rocket just fly up at a constant low speed i.e. 60 mph and eventually reach space?
Well, in theory, you are right. In fact, your imaginary ship doesn’t need to go 60 mph, it could go 1 mph, so long as it could keep…
If you stood 100 meters from a nuclear weapon when it detonated, would you live long enough to realise what was happening?
One of the companies I worked for made test instruments that were used during nuclear tests, starting in the 1950s, to calculate device yields. Some of the instruments…