Why did NASA astronaut Don Pettit say that we don’t have the technology to go to the moon, that we destroyed it? What was he intimating?
He meant exactly what he said. For example.. The memory used in the Apollo onboard computers used core store. This consisted of tiny ferrite beads threaded onto a…
What’s the most ridiculous design fault you’ve seen on a building?
Probably this one. Dubbed the “world’s tiniest skyscraper”. The building itself is structurally sound—that’s not the flaw. In fact, it has stood for over a century. But the…
How much salary per month is enough to live in the UK?
I live alone in a rented first floor one bedroom flat in a small non descript town about 12 miles from Nottingham City on one side, and Derby…
How is the food on US navy submarines?
For the first week out of port it is delicious. The cooks know their stuff. To save space, bread is made fresh every day. I love fresh bread,…
Do polar bears get confused when they see brown bears?
Rather than being confused by brown bears, Polar bears have a very consistent reaction to them. They are terrified by their brown cousins. Even a relatively small grizzly…
If the current US Navy were to lose one Nimitz aircraft carrier in a battle, how quickly could that aircraft carrier be replaced?
Currently, the USN has 9 carriers active. I am considering only carriers that are in a deployment schedule. Carriers in rework, i.e. refueling or major maintenance, are not…
Why didn’t Alexander the Great conquer China?
If Alexander came to China, he would have come from the West. Suppose his entire force made it through the Taklamakam deserts. Then he would have run into…
Which animals can never be tamed? And why?
1.The zebra is one of the most surprising animals we have never tamed. In fact, in a sense, it’s quite surprising. After all, horses and donkeys have been…
Why don’t the Chinese just build their own lithography machines or get one clandestinely and then reverse engineer it?
We do. But we made a mistake in believing “free trade”. When Western countries found themselves not as compititive as Chinese companies, they destroyed their “rule based world…
Why did the Black Death “disappear” after 1352?
Black Death was virulent and deadly. As such, everyone got it and you either lived (unlikely but possible) or died (most likely) By the middle of the 14th…