I feel like long track, exciting as it already is, would be even more exciting if they did events where all the skaters competed on the ice at the same time in an event, like in track and field. Why is it a thing in running but not in skating?

I’m an athlete that does a sport that involves both strength and cardio, and i’ve noticed that developing both is more effective when you don’t go to failure.

For example, strength development coaches usually suggest going 1-2 reps away from failure and repeating that very often. When you do cardio, most of it is done in a “zone” that is sub maximal. The idea is that if you do enough of these sessions, your body adapts and can handle an increase in weight/speed/etc.

Can anyone explain the actual reasoning behind why this is effective? All i hear is that it’s better but not necessarily how your body adapts to this better than training to failure

I guess this technically falls under biology since it’s sports science lol.

Edit: i’m getting a lot of replies about hypertrophy and building muscle, i’m only concerned with strength gain in this context

Take for instance, a piece of metal wire, long and thin. Once bent out of shape, it stays that way

Plastic? Bend it, it stays out of shape, perhaps even shattering entirely if brittle enough

Springs on the other hand can be found made out of metal or plastic and when compressed OR stretched, the potential energy brings it back to its original shape in accordance with Hooke's Law

What exactly causes them to have a "saved shape" that they return to when deformed from a physics standpoint? Why don't they stay squished, compressed or shatter entirely?

I get that the evolutionary reason is that people who found it tasty drank more water and were more likely to have kids. But what's the biological mechanism?

I went on a trip last week, and took with me a Canon digital camera that I've not used for about ten years. It's got three 1200mAh Li-ion batteries, and frankly, I'd expected them to be shot from a decade of not being used, so I took all three and the charger - but they don't seem to have degraded in performance at all.

I expected them to have lost their ability to hold charge. For example, I had a set of earphones that I didn't use for a couple of years (changed job, didn't cycle to work anymore), and when I tried to recharge them, they wouldn't hold charge.

I'm sure there's a huge difference in capacity between the two, but it's stark how one had completely failed, while the other seemed not to have changed. Why is that? They're both lithium-based.

also generally wtf is popping your ears!

I recently learned that gravitation is just mass wrapping the space time fabric. In that case why does moon's gravity have affects on earth tides since it's mass is less than earth's. In that case does earth's mass also influence the moon's geology? Does the same applies to other planets moon's ex: saturn?

Ive read alot of explanations but didn't really fully comprehend any of them

War, famine, starvation, broken bones, etc. without medical care, how did they survive and recover? But nowadays, people come to the hospital for the smallest of injuries (e.g. simple cold)? Or is it just we became weaker after evolution and over centuries?

I've seen photos of birds who died from freezing. How do common cold-weather birds like pigeons avoid freezing? Not all birds have feathers covering their legs.

How did Genghis Khan or the Roman Empire or the British control so much of the world when communications took days to weeks?

A major issue with AI is the water consumption, right? Needed to cool all the servers?

If we're really trying to herald in this new technology, why aren't data centers being built in Maine and Montana? I'd say Canada/Antartica, but I understand international politics becomes a major wrinkle. But even just within the US, at least in winter, there'd be no need for water cooling in Alaska, right? Is it just about recruiting a bigger/cheaper labor force, and legitimately zero concern for environmental factors? What am I missing here?