Recent comments in /f/todayilearned

nosnevenaes t1_je6hp0v wrote

Reply to comment by Whoretron8000 in TIL The oldest musical instrument in the world, a 60,000-year-old Neanderthal flute, is made from the left thighbone of a young cave bear. by gonejahman

ok yeah making the bread is not the hard part. it is getting an agent into the bread to make it rise, such as yeast, or sourdough, etc.

that is the innovation which would have taken a long ass time to come up with.

so they might have had hot cross crackers, hardtac, or whatever - i mean even the last supper - what did jesus and the crew eat? unleavened bread.

the romans didnt have it as far as i know.

i think the bread we eat today (which i love) is a relatively new thing.

i am not dragging chatGPT into this!

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Seraph062 t1_je6g3ku wrote

Reply to comment by BandidoDesconocido in TIL intercontinental ballistic missiles use celestial navigation to check and correct their course (initially set using internal gyroscopes) while flying outside the Earth's atmosphere. by Captainmanic

This isn't true.
If you're a monster that just wants to run up a body count you can get away with 'a couple of kms' from your target. But if you want to attack hardened (military) targets, using a warhead you can actually carry on an ICBM, you'll need to get <1km levels of accuracy. If you want to shrink warheads (so you can carry more than one per missile) then you need to be even more precise.

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Whoretron8000 t1_je6f55o wrote

Reply to comment by nosnevenaes in TIL The oldest musical instrument in the world, a 60,000-year-old Neanderthal flute, is made from the left thighbone of a young cave bear. by gonejahman

For some reason I instantly pictured a chronological display of all the different breads made with different grains, yeasts, proof times etc. In a museum.

Is it possible a neanderthal just found some extra crushed grain sitting in some water that got mashed by the weight or something.. and they cooked it and tried to recreate it? Was it methodical? Accident? How many got sick trying different iterations. Oooh possibilities.

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Ty3point141 t1_je6eu6a wrote

Reply to TIL Early drones were developed during the First World War. These radio controlled planes were primarily for target practice but by 1942 a drone with a built in TV camera was capable of delivering a torpedo to a ship 20 miles from the controller. by jamescookenotthatone

My grandpa was in the Navy in Vietnam. He flew QH-50 Drone helicopters. Traditionally they were supposed to be anti-submarine, however, they felt they had better use taking those torpedoes and dropping them on enemy positions on land.

He said they had a high failure rate and that they would have to go and retrieve the downed helicopters.

QH-50

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Seraph062 t1_je6dz2r wrote

Reply to comment by on_ in TIL intercontinental ballistic missiles use celestial navigation to check and correct their course (initially set using internal gyroscopes) while flying outside the Earth's atmosphere. by Captainmanic

> But how a 60’s 70’s missile “see” the stars.

TV cameras were a thing back then. The idea of taking a 'video' signal and converting it to an 'electrical' one was a fairly solved problem.

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buntopolis t1_je6d1eq wrote

Reply to comment by JetScootr in TIL Early drones were developed during the First World War. These radio controlled planes were primarily for target practice but by 1942 a drone with a built in TV camera was capable of delivering a torpedo to a ship 20 miles from the controller. by jamescookenotthatone

Haha that’s awesome. Such a cool thing to learn about your parent. I didn’t learn much because my grandpa really didn’t like to talk about the war. He only really opened up about it after his cancer diagnosis. That’s when he told me his plane was shot down by Zeroes on patrol, the aircraft sheared in half before hitting the water - only he and the pilot survived. Floated there for over 24 hours until rescue came. Like, holy shit. Really puts my own problems into perspective there.

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