noncongruent

noncongruent t1_jdxowzx wrote

The problem is that in order to see past events, you need to get the telescope out there faster than the speed of light. A photon leaving the Earth travels at the speed of light, and since no known or suspected technology allows traveling faster than light, or for that matter even at the speed of light, it means that no matter how far away you put the telescope it'll always only be able to catch photons that left Earth after the telescope did.

https://en.wikipedia.org/wiki/Light_cone

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noncongruent t1_j6orncy wrote

Also, unless the rims themselves are junk/damaged/corroded, it's usually easiest to just take them to a tire store and get new tires put on them. I would not assume there's enough standardization between different manufacturer hub designs to want to even mess with trying to install new hubs on the existing spindles, at that point might as well replace the axles and then buy spare hubs for the new axles from the same axle manufacturer.

If the rims are corroded but otherwise serviceable, I would just take them to a tire store and have the tires removed, take them home and refurbish them, then take them back to get new tires installed, overall that's probably going to be the cheapest way to four new tires.

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noncongruent t1_j5h198f wrote

I know that OP's picture shows a metal post in concrete, though the drilled wooden post is definitely not a way I've seen before. Typically you'd use a full-length galvanized post and use brackets to connect the wooden fence panels. Not sure why OP's was done that way, seems to be extra work with no real gain.

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noncongruent t1_j5gsv6c wrote

Yep. There are cities in my area, DFW, Texas, that require galvanized posts in concrete. There's a lot of clay in this area which holds moisture, so wood posts tend to rot enough to blow over in a storm in just five or ten years. OP should check to see if their AHJ has particular fencing requirements, what they've got now might be because of restrictive local fence codes.

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noncongruent t1_j1wccog wrote

I used double layers on my HVAC air handler closet along with an insulated steel door for noise abatement, and doubled the sheetrock on the bathroom walls as well for the same reason, along with insulating both sets of interior walls. Very quiet now, it was worth it.

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noncongruent t1_j1spryo wrote

> government backed loans (ultimately forgiven)

Minor correction, those loans weren't forgiven, they were paid back a decade early, with a prepayment penalty:

https://www.teslarati.com/tesla-doe-loan-early-repayment-penalty-elon-musk/

Tesla wasn't the only company to get loans from the DOE program created by Bush intended to help kick start certain technologies in this country.

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noncongruent t1_ixrp0by wrote

The statement was that with Tesla's door handles emergency responders can't open the doors from the outside, and the way NHTSA rules work, all car doors regardless of design can't be opened from the outside if they're locked. First responders are already trained how to deal with this common situation, which is to break the glass, and if necessary, use powered tools to pry or cut open doors. In other words, Tesla door handles do not present any additional difficulty to first responders than any other kind of car, and in fact, Tesla isn't the only company to use flush door handles:

https://motorandwheels.com/cars-without-door-handles/

Edit: And by law all Teslas have manual internal door releases that do not require battery power to operate.

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noncongruent t1_ixrlovu wrote

Yeah, I'm still pissed at that. Chrysler was slow-rolling the recall updates and hadn't gotten to his Jeep yet by the time he was killed, but did accelerate the recall, which could only be done in person at the dealership to upload the update. It still took them most of a year to get them all done. Honestly, vehicles by law should be mandated to have OTA update capability since that's a life-critical safety feature, as demonstrated by Anton's death.

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noncongruent t1_iv2qqnk wrote

Yep, the terminals are geofenced so that if Russians get ahold of one and torture passwords out of a Ukrainian they still won't work in Russian-held territory. This means they won't work in Crimea at all, and when battle lines are shifting rapidly on active fronts there's a delay from when Ukraine can tell SpaceX they've regained control of territory and when SpaceX can propagate the new geofence info to terminals. This is likely only a problem where Ukraine is making rapid progress, which isn't along the entire battlefront.

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noncongruent t1_irlfm42 wrote

On the other hand, being able to wipe a few times would dramatically extend the mission lifetime. If InSight had been launched with a brush attachment instead of HP^3 then it would likely have another decade of service ahead of it running the other experiments, especially the seismometer. Eventually other parts will fail, especially the onboard batteries since there's not really any such thing as battery chemistries that have indefinite lifetimes, but then again this is more of a hindsight observation.

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