Recent comments in /f/explainlikeimfive
rosen380 t1_ja82gcz wrote
Reply to comment by nixiebunny in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
That's funny... I always thought that until today the following popped up in my YouTube feed:
ProfessionalLevel700 t1_ja82dnd wrote
In the scenario you gave, the reason that it doesn’t increase the probability is the because the other sides don’t go away after rolling. For example, if you roll a 10 on a sixteen sided die, that 10 still stays on the die for any subsequent roll attempts, so the amount of sides stays the same, and each number has a 1/16 chance of being rolled.
Probability can change in certain situations, for example a raffle. If 200 names are put in a hat, and one Is drawn, that name is now removed, and your name has now got a 1/199 chance of being drawn. Make sense?
SoloWingPixy88 t1_ja82dnc wrote
Reply to ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Work as a buyer and depending on the food item it can range from 8-16wks stock cover.
A few reasons.
Stability of supply and to negate potential risk of loss of supply. Food is important and people go crazy when theres no food on shelves.
Minnium order quantities are a factor when being ordered from a supplier so it makes commercial sense.
Waste isn't a massive factor for a lot of cupbard foods as theyll have long shelf life anyway and when it comes to Fresh stockholding isn't a thing.
You will have some niche food areas like wines and spirits that arent really effected by code life they can be held for certain times of year like new years etc.
racecarthedestroyer t1_ja82c5d wrote
Reply to comment by Mental_Cut8290 in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
ah, yeah I get it now, thanks
hinoisking t1_ja826n6 wrote
When you go to university, you start by doing your 3- or 4-year undergraduate degree. In most places, your undergraduate degree is a bachelor's degree. After you graduate from your undergraduate program and receive your bachelor's degree, you can then choose to complete a graduate (sometimes called postgraduate) degree. These degrees include master's degrees and doctorates.
fgjkfddrt t1_ja820sl wrote
Reply to comment by Many_Television8895 in ELI5: How does professional boxing scoring work? by [deleted]
I don’t know how it’s scored
[deleted] t1_ja81ru8 wrote
[deleted]
Arrenil t1_ja81q5d wrote
In the UK, an undergraduate degrees is typically what you do first at university. Once you graduate, you become a Graduate and can do graduate degrees like Masters.
its-a-throw-away_ t1_ja81oii wrote
You graduate university with a bachelor's degree. You may then pursue a master's degree and then a philosophical doctorate (PhD).
Work toward your bachelor's degree occurs before you graduate; hence, you are an undergraduate.
hinoisking t1_ja81mak wrote
The probability of rolling a six on any fair die roll does not change. It will always be 1/6. The idea that the probability goes up if you haven't rolled a six in a while, or down if you just rolled a six, is known as the gambler's fallacy.
breakermw t1_ja81kta wrote
No, there isn't. Every die roll is an independent event. Thus, the probability of rolling any number is the same no matter how many times you roll it. The likelihood of roll a 6 100 times in a row is very low, but it can happen. The next time you roll, the chances of any number coming up are the same as they were before.
CuriousCanuk t1_ja81bfo wrote
Reply to comment by SmackEh in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
This. Supermarkets get trucks every day all day, The stock doesn't stay around long
tomalator t1_ja817k0 wrote
Reply to Eli5: how old is a photon from the sun when it arrives to the earth? by Opposite-Shoulder260
Photons don't experience time since they travel at the speed of light. Time passes slower the closer you get to the speed of light, until it stops at the speed of light. A photon that is part of the cosmic microwave background is indistinguishable from a photon created by my microwave oven unless you see where it's coming from.
If you are looking at the photon from an outside perspective, when fusion happens in the core, a lot of energy is released. The same photons from that reaction dont necessarily make it to the surface, rather get absorbed and remitted before taking 8 minutes to make it to Earth. That process of absorbtion and remitting from the core to the surface, on average takes about 100000 years.
cleetusneck t1_ja8002q wrote
It’s also about the arms race. As you advance, so does your adversaries, so you have to keep advancing to maintain your advantage. You always need new, because the old gets destroyed or less and less effective over time. Once it becomes a large part of your economy- it’s vital to towns like any other big industry, and any cuts have have huge economic and political repercussions.
[deleted] t1_ja7zvb8 wrote
Reply to comment by NotNowDamo in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
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WholeFoodsWholeLife t1_ja7zum7 wrote
Reply to comment by [deleted] in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Oh no, it's still way too much for sure. And part of that waste is definitely caused by stores trying to keep up appearances of full shelves. At the store I worked at we did try really hard to minimize waste though, but then stuff happens like fridges breaking, deliveries getting messed up, customers returning food, etc. I just wanted to clarify because stores are motivated by profits to not toss food unnecessarily, most of the time. But they can still do better.
kevronwithTechron t1_ja7zoco wrote
Reply to ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Another thing to consider is those big supermarkets are placed to have a bigger catchment area of customers. So it seems like a lot of fresh food but a lot more people are going through it every day.
Americans typically shop for groceries once a week or less. So for a lot of people a grocery trip can actually be a bit of a chore, 20+ minutes drive, park, haul butt across a huge desolate parking lot. Then load up for a week or more so you don't have to do it again soon. This means one family may only be shopping once every 7 to 14 days so there is plenty more room for other shoppers. This sort of shopping pattern is what encourages the bulk shopping club type store where a family might only shop once a month or so for absolutely massive amounts of non-perishable goods.
In more urban areas you end up seeing smaller grocers that are more around the size you might see in Europe and other places, but usually there is still a mega monster shopping store somewhere.
Mental_Cut8290 t1_ja7zix7 wrote
Reply to comment by navenarf in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
From a physics standpoint, you can only brake with 100% of your tires' grip. If your brakes are capable of locking up the wheels (or triggering ABS) then you already have more than enough braking power. Engine braking won't help unless your brakes are weak.
MartyVanB t1_ja7yzem wrote
Reply to comment by azuth89 in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Drive any distance on the interstate and you will see more than one Wal-Mart truck
NotNowDamo t1_ja7yv2q wrote
Reply to comment by [deleted] in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Not true.
NotNowDamo t1_ja7yrdi wrote
Reply to comment by RedBeard_the_Great in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Whoops, wrong person.
RhynoD t1_ja7ynr0 wrote
Reply to comment by racecarthedestroyer in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
Pretty much all automatic cars have a "gear" or setting for engine breaking. Even my Prius with a CVT has it: a separate button for Park, then you "shift" to put the car in Drive, Neutral, Reverse, or B for engine Braking. I don't think I've ever needed to use it, but it's there.
Automatics that don't have a CVT may not have a dedicated Engine Braking setting but they should have a forced 1st, 2nd, and/or 3rd gear (or Low and High which is 2nd or 3rd). The computer is locked so that it won't shift higher, which you can use to engine brake.
Finally, there are the "semiautomatic" cars or automatic with a semi setting, where you can "shift" like you're in a manual but the computer and automatic transmission does the actual physical shifting of the gears; they just do the shifting when you say to rather than when the computer wants to.
WraithCadmus t1_ja7yn2n wrote
20 years ago I was told to hit the brakes hard and to be perfect push the clutch in just as you're about to stall, so you get engine braking all the way down. In a real emergency stalling is not the worst outcome.
Mental_Cut8290 t1_ja7ymnk wrote
Reply to comment by racecarthedestroyer in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
It needs to have multiple drives. D, 1, 2.
racecarthedestroyer t1_ja82mcr wrote
Reply to comment by RhynoD in ELI5: What is the fastest way to stop a car with a manual gearbox ? by navenarf
ah, I understand it now, thanks