Can a Boeing 747 do a barrel roll?
Never knew a pilot training on the 747–400 to not roll the airplane while in the simulator. None of us were completely sure of the simulation’s fidelity but the control…
Why do pilots say, “Roger”? What does Roger mean in aviation?
Pilots use the phrase “Roger that” when they are in the air. Have you ever thought who the Roger is and why his name appears in the conversations…
How did the astronauts just wipe the Moon dust off their skin/eyes with a cloth, when in 2022, we now recognize that moon dust is sharper than fresh shattered glass, and would instead embed itself into our skin causing lacerations?
The last person on the moon was Gene Cernan. After three moonwalks totaling a little under 22 hours he was dirty. Despite being sealed inside a space suit…
Humans are practically defenseless. Why don’t wild animals attack us more?
Humans are ridiculously good at killing things. So you are 100% correct that an ordinary stone age hunter against a bear, with nothing but his bare hands, is…
Why do pilots shut down engines on passenger jets during flight?
As a trans Atlantic flight was on it’s way to England, the passengers were enjoying a nice catered meal when the captain came in the public address system…
Could a human brain be placed somewhere outside of the body while still remaining alive?
It would be exceedingly difficult to extract the brain and keep it alive. People think that the brain is a separated thing. It isn’t. It’s an integrated part…
Why don’t firemen use salt water instead of drinking water for extinguishing fire?
In addition to some of the excellent answers already given there’s: IF freshwater becomes scarce enough to make firefighting seriously have to change what they use to fight…
Why did people use to hunt whales for their fats? What did they do with it?
They hunted whales for their oil, not just their fat. There is a difference. Whale oil burned cleaner, brighter than any fuel in the 1800’s. It lit the…
What animal is not afraid of fire?
It is common knowledge that if you are camping in the wilderness you should light a fire to keep any dangerous wild animals at bay. However, this is…
In martial arts, is it true that technique beats muscle? I highly doubt that a scrawny kid with kicking skills can beat a crossfitter.
The man on the left is George Foreman (R.I.P. Big George) in the process of decimating Smokin’ Joe Frazier, a boxer of legendary stamina. In their first fight,…