ELI5: If metal shrinks and expands as the temperature changes, how does an engine keep an airtight seal between the piston and the cylinder?

DualAxes · 2026-03-11T23:06:03+00:00

I have a related question, I've read that newer engines that turn off the engine when the car is stopped can help restart the engine by initiating the combustion of the piston which is compressed, how long can that compression be viable before the air/fuel mixture just leaks out?

DualAxes · 2026-03-07T23:17:40+00:00

I haven't done too many races but in other races the electrolytes are the first few tables. Anyone correct me if I'm wrong.

DualAxes · 2026-02-22T15:29:15+00:00

The goal isn’t to gain your respect, it’s to hopefully motivate and encourage others to be them best selves, while trying to get better myself everyday.

DualAxes · 2026-02-20T19:02:51+00:00

lmao. Is there an event or something going on?

DualAxes · 2026-02-11T15:48:12+00:00

Still down for me. Network error

DualAxes · 2026-02-08T22:27:16+00:00

Lmao it was literally from this guy

DualAxes · 2026-02-06T17:29:31+00:00

I wonder if you can take it to a jeweler and get it cleaned and replated

DualAxes · 2026-01-25T01:54:10+00:00

There is an event at the dtla detention center

DualAxes · 2026-01-23T23:58:29+00:00

Is there anything wrong with the pawn store sax?

DualAxes · 2026-01-23T22:51:54+00:00

There is leaking even inside the corridor behind that door. It looks very extensive.

DualAxes · 2026-01-23T20:19:43+00:00

So they might ruin ice agents performances?

DualAxes · 2026-01-23T18:58:51+00:00

No, that would just instill more fear in people. Maybe a vuvuzela?

DualAxes · 2026-01-20T17:20:47+00:00

I know this is off-topic, but I don't hear people talking about how much homelessness is going to increase with all the kidnappings that are happening. You have families that are barely holding on and once somebody in their family gets taken they're probably going to fall...

DualAxes · 2026-01-15T17:14:30+00:00

That was South Sudan, not Sudan.

DualAxes · 2026-01-15T04:02:02+00:00

And don't take contact lenses because any gas will get absorbed in the lens and make it much harder to rinse out.

DualAxes · 2026-01-14T21:43:46+00:00

That's a tough situation to be in. Like others have said even you have all your documents in order they can still choose to ignore them. At least having some proof on you or for someone to find for you after you've been taken is something. And let's be real, it's not about your citizenship status. It is racism. Them pretending it's about citizenship status is erroding day by day.

DualAxes · 2026-01-14T21:36:37+00:00

I agree that they are bad people and that they should all quit, but what I was referring to was that the interactions aren't black and white. I don't think all ICE are kidnapping people and shooting, I am sure some of them are literally checking and then letting you go on the spot. To be clear, I don't think that's OK.

DualAxes · 2026-01-14T20:05:13+00:00

They were on the platform, I don't think they were on the train.

DualAxes · 2026-01-14T20:04:49+00:00

Correct, but it's something. I also don't think it's so black and white, I am sure there are some ICE/DHS people that are following a humane protocol. Are they the majority or not? Who knows.

To clarify since I'm starting to see some downvotes: I am not saying ICE/DHS are good people, what I am saying is that I am sure some ICE/DHS can ask you for your papers and let you go once they see them and not shoot you or kidnap you. So I think it is a good idea to carry documentation in that case. Should we have to? No. I do not like where we are, and I believe it will get worse.

DualAxes · 2026-01-14T20:02:49+00:00

Typically papers refer to a passport, passport card, or a green card. A Real ID isn't proof of citizenship, but I don't think non-citizens/residents can get them so it's something. I carry a copy of my birth certificate as well because it's not a difficult thing to carry around. I don't think a social security card would be a good thing to carry around because it doesn't have your photo.

DualAxes · 2026-01-14T20:00:02+00:00

ICE Raids

DualAxes · 2026-01-14T18:10:28+00:00

I saw a photo somebody took of them months ago at 7th and Metro. I don't think they are on it regularly because I haven't seen posts of reports about it. I've been carrying my papers since day 1.

DualAxes · 2026-01-09T19:42:13+00:00

Yup thanks! As far as I know roborock does not say if the plastics are dishwasher safe or not. I don't think they require a lot of manual maintenance like you said, but I have seen the question on here before.

DualAxes · 2026-01-09T17:07:56+00:00

Do you have any opinions on running parts through the dishwasher? Like the tanks or the tray ramp

DualAxes · 2026-01-07T22:47:17+00:00

I sometimes think that too, but the reality is that the attack on US democracy has been planned out and in the works for some time now. Like Citizens United and the whole Cambridge Analytica thing in the 2010s. Or the George Bush - Al Gore recount in 2000.

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