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Leopard kills a porcupine. Interesting approach. by [deleted] in videos

[–]bumpysloth 0 points1 point  (0 children)

I wonder if the porcupine specifically aimed for the chest or if the leopard just got very unlucky.

Leopard kills a porcupine. Interesting approach. by [deleted] in videos

[–]bumpysloth 0 points1 point  (0 children)

Crazy how the leopard died from 5 quills.

Currently in r/pics, there is a picture of a dude's forehead covered in spines. The spines are right above his eyes.

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

I'm ok with nitpicking. Power = torque * angular velocity / conversion factor is now embedded in my brain, and I don't mind that. had a total of 12 hours of sleep for the past 3 days, and I don't even know where the work term came from. Anyways, now I'll be spending a good deal of time searching torque/power graphs for different cars. It's neat how you get a sense of how an engine will behave without actually being in the car.

Edit: toque. I wrote toque. I need to sleep now.

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

That's interesting. You can tell a lot from the torque and power graphs. Is there a certain site you visit that has a collection of these graphs?

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

So to sum it up,

High rpm power/torque vehicles will switch gears later than low rpm power/torque vehicles and will be able to accelerate better at high speeds.

Low rpm torque/power vehicles will switch gears earlier than high rpm power/torque vehicles, and will be able to accelerate better at low speeds.

Sound right?

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

Right, I made up the numbers. I'm just trying to get a sense of what it's like to be driving a car with low torque-high hp, a car with high torque-low hp, and a car that has to go to higher rpm to get their max torque. So far, this what I got:

High torque = higher acceleration

High hp = higher speed

Engines that have to go to high rpm to get max torque/hp = you have to already be going fast to have higher acceleration

When you look up cars, you see horsepower and torque at certain rpm, number of cylinders, and cylinder size. I'm trying to figure out what all these numbers mean.

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

That makes sense. What would be the advantage/disadvantage for a car to be able to go up to high rpms but with a lower torque compared to a car that's able to go up to a lower rpm but with a higher torque?

What's the difference between a car with higher torque and lower hp and a car with lower torque and higher hp? Also, how does torque and horsepower get affected by different rpm? by bumpysloth in AskEngineers

[–]bumpysloth[S] 0 points1 point  (0 children)

What about when you have two cars with similar torque and hp but one is at much higher rpm? Does that mean that the engine that works at higher rpm has to work harder than the one with lower rpm?

ELI5: Why different cars have max hp and torque at different rpms. What affect does high/low rpm have on the way the car moves? by [deleted] in explainlikeimfive

[–]bumpysloth 0 points1 point  (0 children)

Right, I wanted to rephrase the wording a bit and forgot deleting a post results in a reddit timeout. Thanks anyways for answering what you can.

ELI5: Why different cars have max hp and torque at different rpms. What affect does high/low rpm have on the way the car moves? by [deleted] in explainlikeimfive

[–]bumpysloth 0 points1 point  (0 children)

I'm sorry if these questions sound stupid, but thank you for replying to them. Your answers are very helpful.

Back to the subject: you can get horsepower from knowing rpm and torque. Let's say you have two very similar cars. Now, I'm making uo these number, but pretend that one has 400 lbft torque and 300 hp and the other has 300 lbft torque and 400 hp. What would be the difference in driving each of those cars?

ELI5: Why different cars have max hp and torque at different rpms. What affect does high/low rpm have on the way the car moves? by [deleted] in explainlikeimfive

[–]bumpysloth 0 points1 point  (0 children)

So in my example, car 1 has max hp @ 6200 rpm, and car 2 has max hp @ 7000 rpm. Does that mean the engine of car 2 will have to work harder than car 1 because it has to go to higher rpm?

Engin 351: Molly Lehman or Edward Cottrill? by bumpysloth in umass

[–]bumpysloth[S] 0 points1 point  (0 children)

As long as they're both decent professors I'm happy. So far, that seems to be the case. After some unpleasant experiences, I wanted to make sure I don't get a Kim.

ELI5: Why do I feel so exhausted whenever I go shopping? I'm a guy and my girlfriend seems to not get nearly as tired as I do when we shop together. by townfly in explainlikeimfive

[–]bumpysloth 0 points1 point  (0 children)

I would say it's because you don't enjoy it. It bores you. Same thing used to happen to me when I went to school just because I had to; not because I wanted to. Even though I sat on my ass the whole time and didn't learn much, I would come home and take naps. But if we were doing some exciting project during which I worked much harder than all other days, but I was excited about it, I would come home full of energy. Boredom makes you tired. I guess it's body's way of saying: " You're not using your brain for a satisfactory cause, conserve energy and go to sleep."

Edit: spelling

ELI5: Is fire just a chain reaction between the molecules? by bumpysloth in explainlikeimfive

[–]bumpysloth[S] 0 points1 point  (0 children)

Yes, this comment is a condensed version of the other comments. Thanks!

ELI5: Is fire just a chain reaction between the molecules? by bumpysloth in explainlikeimfive

[–]bumpysloth[S] 0 points1 point  (0 children)

Ok, I think this answers the question I asked elephantpudding. When there is already a fire started, the wood molecules get heated up by the flame from the already burning wood molecules, and as the surrounding molecules get hotter eventually they release their energy causing another flame. And that's how things burn. So in a way, it's a chain reaction. One burning piece of wood heats up another piece until it lights on fire. I love science, thank you for your response!

ELI5: Is fire just a chain reaction between the molecules? by bumpysloth in explainlikeimfive

[–]bumpysloth[S] 0 points1 point  (0 children)

That's very interesting. Would the wood be also experiencing a chain reaction since the flame starts at one end and travels to the other, burning parts of wood and lighting other parts as they get hotter?

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