Actually it changed its mind twice. Originally the panda bear was called the particolor bear. Then, after a little research indicated some physiological similarities to a raccoonish critter simply called “panda,” they were both renamed. The particolor bear became the giant panda, and the panda became the lesser panda (but that mostly gave way to “red” panda over time).
I think it was within the last 20 years or so that scientists decided that “Oops! We were right the first time!”
And so far as the discussion on “nuts,” the nitpickery there is that “true nuts” are a subset of “nuts,” so saying that [whatever ‘nut’] is not a nut is just. . . nuts.
When I was in primary (early 70s) there were only 3 life kingdoms (animals, plants, and protists.) There are 6 now, based on wiki. I used to find out about new additions by reading the Guiness book.
Third grade. On a quick homework assignment meant to show us how any multiple of 10 could be done by just counting up the zeros. Easy stuff, but after I finished it, I saw some printouts my father (the astrophysicist) had brought home and saw my big mistake. So I fixed it, and got an F for “crossing out all the zeros”.
Actually, there was no genuine standard, with various impact printers using slightly different fonts. Then data centers established their own standards for hand-written documentation. It was always such a delight to get documentation from a software vendor that used the opposite convention from the data center.
It’s true, so long as you put a container of water in along with it so you don’t burn out your microwave (magnetron?). Also colorful and exciting, depending on what the aluminum foil is in contact with when it ignites.
NASA Aerospace Engineer here. Short answer on the whole lift thing is that Bernoulli does accurately describe life. In that, if you get the velocity around the wing right, Bernoulli will tell you how much lift you have. Of course, that still leaves the question of how fast the air moves around the top and bottom.
The wrong thing they told you as a kid, as mentioned earlier, is the equal transit time myth, but that does not invalidate Bernoulli.
The little plane above produces lift mostly due to angle-of-attack, but there is likely a little camber in the wing too. There usually is for those kinds of planes.
Well, you could also drop and shatter a thin piece of ice.
Daddy longlegs can be dangerous in at least one regard. Years ago we had two young and apparently bored cats. They killed and shared the eating of a daddy longlegs one evening. About 15 minutes later my wife and I were busy cleaning up after two puking cats.
On glass formerly being known as a super cooled liquid. Wouldn’t that logic imply lava rocks and cast iron are also super cooled liquids?
This thread hasn’t touched on food “knowledge” yet. Remember when oleo margarine was considered a healthy oil and people avoided olive oil? Now it’s deemed about the worst fat imaginable and olive oil is “in”.
And I was instructed never to ever do that to eliminate confusion in hand-written work. Ø was to refer only to the empty set.
I was also docked points for colouring in Greenland as part of North America. Because Greenland is part of Denmark, and Denmark is part of Europe, so Greenland is part of Europe. (This was in a physical geography class).
I’ll again harp once more on the point I made about bows – muskets, also, particularly as they improve from matchlocks to flintlocks and beyond, permit a commander to pack more men into a length of line that crossbows do.
x-bowmen can terrace, you know: half shooting at knee-height, the other half shooting while standing. That’ll form a denser clump than a straight line. Only bows can’t do that.
