Recent comments in /f/explainlikeimfive
wobble_top t1_ja98cvt wrote
Reply to comment by JiveTalkerFunkyWalkr in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
Absolutely incorrect that locked up wheels stop faster than ABS. Skidding wheels stop slower due to a lower coefficient of friction.
ABS also controls all four brakes at once, which is something you cannot do with the 1 brake pedal.
BaconReceptacle t1_ja98asp wrote
Reply to comment by DeadlyProtocols in ELI5: Why do we take that deep, involuntary breath when idle out of nowhere? by respectcrazy
I think it's natural selection. We evolved with alveoli as the gas exchange mechanism in our lungs. If you didnt have the genetic code for this automatic response, you didnt have as many offspring.
DeadFyre t1_ja989gw wrote
Disengage the clutch, depress the brake. Any effort and thought put into downshifting or engine braking is time taken away from stopping the car.
thunder_struck85 t1_ja9894k wrote
Reply to comment by FellowConspirator in ELI5: why does/doesn’t probability increase when done multiple times? by Reason-Local
But if you roll a 6 ten times in a row, you could just have an unfair die. So in theory it's 1/6 always. But in the real world I would bet on it being a 6 the eleventh time 🤷
IAmJohnny5ive t1_ja986b5 wrote
Reply to comment by Viper_JB in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
Depends on the circumstances - pumping brakes is more for a steep downhill
series_hybrid t1_ja9821e wrote
Reply to comment by aspheric_cow in Eli5: why are some airplane jet engines under the wings and some on the vertical stabilizer? by Sad-Carrot-4397
I always liked the MD-80..
phiwong t1_ja97xgb wrote
Reply to comment by alnyland in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
Once the brake locks the wheel (or ABS comes on), that is the limit of traction between tire and ground. Engine braking has to go through the tires (it doesn't brake by increasing air drag or anything). Since any modern car brake system has enough power to lock the wheels, engine braking does not slow down the car any faster than simply slamming on the brakes (with ABS) or threshold braking (non ABS).
If you are noticeably slowing down the car more through engine braking while applying FULL pressure on the brakes - your brakes are likely defective.
Frazeur t1_ja97xdn wrote
Reply to comment by Soccerfanatic18 in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
If you live in the states, then that is probably true since most manual drivers tend to be somewhat enthusiastic about cars over there. But a majority of all manual drivers don't live in the US.
Here in Europe, a vast majority of cars were manual still a few years back (still are I think, but almost all new cars are auto nowadays), which meant that everyone including your wife and granny (literally) were driving manuals. Which means that most manual drivers were the type of people who see cars as a mandatory but boring appliance. These people don't know how to rev match, let alone heel-toe.
mdlewis11 t1_ja97r90 wrote
Reply to comment by artgriego in ELI5 why is jury duty a requirement? by [deleted]
In some states, your employer must pay you full time for you time on jury duty.
I love playing Matlock and getting paid for it!
Twin_Spoons t1_ja97fp1 wrote
Reply to comment by Judge_T in eli5: What exactly does a "videogame publisher" do? by Judge_T
The marketing component is big. Getting the game talked about in the spaces that potential customers frequent is hugely important but also requires a lot of resources and connections that developers don't often have. It's not just paid ads but trailers, criticism, launch events, merch, engagement from Twitch streamers, and all the other pieces of the hype engine. The difference between all the good games you've never played and all the mediocre games you have played is mostly marketing.
Also, like book or music publishers, video game publishers may also advance some money to the developers to fund the development of the game, working essentially as venture capital.
[deleted] t1_ja97cwt wrote
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Any-Growth8158 t1_ja9723y wrote
Reply to ELI5 why is jury duty a requirement? by [deleted]
It's actually not hard to get out of jury duty--especially if you are an engineer or other sciency type (or a lawyer). Lawyers don't like people who will use their own experiences and knowledge in interpreting evidence. They also fear that they may influence others with their external knowledge of things.
Lawyers want people to buy their half truths, and if they think you're not as susceptible they won't want you anywhere near the jury.
DeadlyProtocols t1_ja96t4v wrote
Reply to comment by BaconReceptacle in ELI5: Why do we take that deep, involuntary breath when idle out of nowhere? by respectcrazy
Interesting, so I wonder if it’s like a pre-fight or flight deal. Your body anticipates a need for rapid breathing so it is planning ahead.
Devil_May_Kare t1_ja96rbj wrote
Reply to ELI5 why is jury duty a requirement? by [deleted]
People accused of crimes have a right to have their fate decided by a team of normal people. And normal people have better things to do than decide the fate of someone accused of a crime, so we wouldn't be able to fulfill that right if we didn't make it hard to get out of.
Canadian47 t1_ja96qts wrote
Reply to comment by rohlinxeg in ELI5: why does/doesn’t probability increase when done multiple times? by Reason-Local
Another way of saying this is that "dice don't have a memory"
Decent_Response_904 t1_ja96iu0 wrote
Reply to comment by RhynoD in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
The flip side of the “sport mode” is if the RPMS stay increased, the car will shift up for you.
Curtainmachine t1_ja96isn wrote
Reply to comment by someone76543 in ELI5: why does/doesn’t probability increase when done multiple times? by Reason-Local
Or “this airport has a shit mechanic/maintenance crew”
DeadlyProtocols t1_ja962jf wrote
Because they are independent events.
Think of it this way - if you roll a die in Chicago and I roll a die in New York - they are not connected in any way. Agree?
Same is true if you roll the same die repeatedly in the same place. It has no memory.
It is possible to design a system that tries to balance outcomes explicitly so as to “load share” based on some memory but that is not how ordinary randomness works.
Any-Growth8158 t1_ja95tb9 wrote
Reply to comment by DressCritical in ELI5: How do cameras exactly work? Why can they see so much clearer and farther than the naked human eye? by PapaMamaGoldilocks
To add...
It should also be noted that there is actually a good sized blind spot in the human eye where the optic nerve attaches to the retina.
Rods and cones are not evenly distributed across the sensor area (retina) of the human eye.
Devil_May_Kare t1_ja94wnk wrote
The dice have no way to remember the times you've rolled them before. Since they don't know you rolled a 6, they can't act differently on later rolls to make 6 less likely.
nrron t1_ja94wci wrote
Reply to comment by trailing-edge in ELI5: Why do egg cookers need less water to cook more eggs? by trailing-edge
They don’t need to touch the water. That’s a sealed container. Put the eggs in with some water, boil the water and let the eggs cook in the steam.
This doesn’t work in an open container where you can’t keep the steam by the eggs
DankChunkyButtAgain t1_ja94q1r wrote
Reply to comment by Ansuz07 in ELI5 how pounds can be converted to kg by cheeseunused
This is why in engineering you learn that pounds can be either a force or a mass, designated lbm or lbf. Pounds mass is based around the gravitational constant only, so it is a weight but because the gravitation constant is standardized it can also be a form of mass. Pounds force accounts for the gravitational constant where the object physically is or needs to be studied. For earth, pounds mass and pounds force are the same. Anywhere else, they will differ.
​
Edit: For those who don't know, a slug is the actual imperial unit of mass
Jpro325 t1_ja94oj8 wrote
I think anyone who has driven a manual transmission for performance knows/feels engine braking is 100% a thing. Drop the gear to the lowest you can without red-lining (80mph?, drop to 3rd), then 100% brakes. A lot of momentum/energy is absorbed from pushing all the components of the transmission, flywheel and engine at a disadvantageous gearing. Similarly, if you were to put it in neutral and try 100% braking it’d take much longer to stop. That difference is the engine breaking.
thethunder92 t1_ja94idi wrote
Reply to comment by wubrgess in ELI5: Why is skin considered an organ? by PapaMamaGoldilocks
I never forget to put the lotion in the basket!
B-F-A-K t1_ja98f2y wrote
Reply to ELI5: why does/doesn’t probability increase when done multiple times? by Reason-Local
As many said: whatever you rolled before, the next roll will always have a 1/6 chance of becoming any specifuc number. There's 6 different outcomes, each is equally likely.
I'd like to add: When figuring out the probability of the sum of multiple rolls, you look at the number of combinations that make that sum.
There's only one way to make a 2 with 2 rolls (1 and 1).
There are two ways of making a total of 3: 1+2 or 2+1
There are three ways of making a total of 4: 1+3, 3+1, 2+2
5 = 1+4, 4+1, 2+3 or 3+2
And so on.
The probability of a certain sum (12 for two sixes) is the number of combinations that give you that sum (1) divided by the total number of combinations there are (6*6), so it would be 1/36.
If you wanted another specific outcome, say the first die must be a 3 and the secomd one must be a 1, that's also 1/36. If the sum just has to be 4 the probability is 3/36 or 1/12.