Recent comments in /f/explainlikeimfive
SocalGSC92 t1_ixtsasj wrote
When i visited Uganda, the gas stations all had signs saying “Do not turn off engine.” Everyone kept their car running. I just kinda took it as: well thats what they do here.
Tsikura t1_ixts9hf wrote
Reply to ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer
Every file has a header. Basically a string of information encoded within the file that helps programs identify what kind of file it actually is even if you rename or even delete the extension. A good image viewer will be able to identify based on that.
If Photoshop can't do it, then that just means it doesn't bother checking for the right file format or it's just a bug.
Fat_IRL t1_ixts9e2 wrote
Reply to ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer
Whatever application you're using to open the file in question knows how to display the file in question.
File extensions don't actually matter, they're for humans, not computers. More or less.
Most every file of any type has a piece of info at the beginning that tells your computer how it would like be opened and what type of file it is. Basically a hidden 'real' file extension. But you can open a .jpg in a text editor any time you want. Your computer assumes that's not what you really want to do, so it generally doesn't give you that option without you forcing it to.
If you wanna go deeper, it's all numbers and letters and the extension does not matter at all. Like almost every computer game you play, the file that saves your progress is very often just a .zip file renamed.
happygoclunky t1_ixts45w wrote
Reply to comment by Scott_4560 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
Also saves on emissions and polutuon in cities and towns, improving people's health.
I have a car with this feature and after 8 years the starter is still going strong. And you can turn the auto stop off
Nemesis_Ghost t1_ixts3tj wrote
Reply to comment by Luthemplaer in ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer
They can.
If you are talking about double-clicking the file in a folder you have to set that up in your OS. In Windows you can right click & do "Open With" and select your preferred app. In the Open With menu you can pick "Choose another app" & then there's a check box "Always use this app to open...". Check that check box & pick your app, then next time you double click that file type it'll open with that app.
If you are trying to use the Open File dialog box, you can change the extension(s) it's looking for. You can manually type in *. followed by the extension. So for jfifs, you'd type in "*.jfif". Or most times there's a drop down next to where you can type in the file name & you can pick a file type or set of types.
nuclearrwessels t1_ixtrn9s wrote
Reply to comment by FattestSpiderman in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
I used to go the a full service gas station every week across from my job for a fill up. The attendant hit on me every single time. One day, I was distracted on a Bluetooth phone call and just started to drive away while he was mid pump. I stopped and thankfully nothing got damaged but I was too mortified to go back for weeks.
I finally went back one day and he goes “ahhh, hello! Very beautiful, not very smart.” Lmaoo i was like yah fair play.
Equrteadt t1_ixtr74e wrote
Reply to comment by tmahfan117 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
now imagine everyone leaving their car on when filling up? that'd be a huge waste of fuel overall.
donal23 t1_ixtqwfc wrote
Reply to comment by ScandInBei in ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer
In any software that's written, never should a file be tried to open based on extension alone. Because that would mean that renaming an executable to an .jpg and having someone open it in said software, executes the file.
So Photoshop already does the actual checking of a file by its contents. What might be happening is that it already rejects the file based on extension however. But the second part is definitely already there.
Scott_4560 t1_ixtqu0j wrote
Reply to comment by mythic_device in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
One of the dumbest features of modern cars. Would rather spend a few dollars on fuel wasted while idling than fork out for a new starter motor ever few years
geek_fit t1_ixtqst2 wrote
Reply to comment by HeadBat6660 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
Wait...what?
Scizmz t1_ixtqoj6 wrote
Reply to comment by aDvious1 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
Electrical systems ground to the frame of the car. If there's a substantial difference in charge between the nozzle and the frame, sparks are possible, though unlikely. Most fueling systems are grounded out to prevent this.
Scizmz t1_ixtqk4g wrote
Reply to comment by dont-YOLO-ragequit in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
This is actually a thing. It can trigger a CEL if left running when you pop the gas cap.
mythic_device t1_ixtq8up wrote
Reply to comment by iblastoff in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
Yes. With most new cars like hybrids that shut the engine off automatically at red lights, it makes no sense to leave an engine on during 5 minutes of fuelling and paying.
tdyo t1_ixtq6qg wrote
Reply to comment by HeadBat6660 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
Mama says stupid is as stupid does.
FattestSpiderman t1_ixtq16u wrote
Reply to comment by Charles_Whitman in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
I was told the same! Considering the utterly moronic things you see people do on a day to day basis, it wouldn’t surprise me if it was a daily occurrence for fuel stations back then
potentiallyasandwich t1_ixtpsof wrote
I had a wreck of a combo once that wouldn't start warm. Used to have to park it just outside the services, leave it running and fill it up with cans.
[deleted] t1_ixtpo52 wrote
Reply to comment by tmahfan117 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
[deleted]
HeadBat6660 t1_ixtp2dg wrote
Reply to comment by tmahfan117 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
This.
The same reason why some countries put warning stickers on microwaves that says "Do not put babies in the microwave"
Stupid people are gonna stupid.
CMG30 t1_ixtos4a wrote
The risk of fire is very low with the engine running or not. Slightly higher with the engine running, but not much.
I would imagine that the biggest reason is that it's simply bad practice to leave any machine on when you're away from the controls. A kid could knock the gear shift. A crook could jump in. Let your imagination run wild. Any manner of remote but real possibilities can be avoided by simply turning the thing off. Kind of like wearing a seatbelt. Most people never need it, but that one time they do makes all the difference...
Frednotbob t1_ixtoeue wrote
I didn't know for sure, so I did a quick search:
>“It's is safest to shut off your vehicle to avoid a fire, static electricity or a check engine light,” says Lauren Fix, an ASE certified technician and sector analyst at The Car Coach. “The fire risk is that the fumes burn, not the liquid. This could lead to an explosion.”
>
>https://www.familyhandyman.com/article/can-i-pump-gas-with-my-car-on/#:~:text=%E2%80%9CIt's%20is%20safest%20to%20shut,could%20lead%20to%20an%20explosion.%E2%80%9D
sonicjesus t1_ixtoc63 wrote
They're only alive in the sense that they are made of organic material. It's sort of like a note written on a piece of paper. Just as the technically organic note will degrade in the rain, so too will the virus.
It's essentially a stack of information cells reproduce not knowing it from another.
ScandInBei t1_ixtoaoo wrote
Reply to comment by Luthemplaer in ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer
The sw has to explicitly decide (and a programmer implement it) to check the file if it's a renamed file.
The simpler way is to try to open the file and decode it according to the file format and if it fails show an error message.
So it Photoshop could do it, but someone has to program it and it would cost money to do it.
iblastoff t1_ixto1xd wrote
do you have to? probably not. but i think the obvious answer is unless you're driving some ancient car, turning off your vehicle is literally gonna save you on gas since you're not wasting it idling for 5 minutes or however long it takes to fill up.
now imagine everyone leaving their car on when filling up? that'd be a huge waste of fuel overall.
[deleted] t1_ixtnqjq wrote
Reply to comment by BigChiefS4 in ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
[removed]
davtruss t1_ixtscda wrote
Reply to ELI5: Why do you have to turn your car off when you fill up your tank? by logan0921
There are days when I cannot express adequately the appreciation I feel for redditors and their take on things. Then there are days when I appreciate google more:
Pump Gas with Engine ON?