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  1. Grinding Noise at 40-60 MPH?

    I assume you mean a bad/damaged ball or roller bearing, not a spun bearing, since an EV has no rod bearings or other plain bearings to spin. What tires do you have?
  2. First Down Year In Deliveries

    But...the announcement of a split tends to produce a bump, and after a split, the same stock usually underperforms. This has been studied many times...
  3. Solar Panel Wrapped Cybertruck debuts at CES

    Designed to rapidly part fools from their money. I take back my previous 500W peak estimate: you'd be lucky to top 200W with this parked in full mid-day sun.
  4. Solar Panel Wrapped Cybertruck debuts at CES

    It definitely does not mean that. At 100% efficiency, one can only get about 1 kW per square meter. The module shown there gets about 100W/m^2, so with maybe 6 m^2 to work with, you are looking at about 500W in mid-day sun. Basically, you'd be hard pressed to charge faster than vampire drain...
  5. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    This discussion, aside from being off topic, reads like a transcript of a crackpot session at an APS meeting. (Being an open meeting, anyone can submit a talk on physics, regardless of whether they are a physicist or have anything at all sensible to say, as long as the topic is physics.). These...
  6. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    An article discussing how puzzling it is that he didn’t use his knowledge to devise a more effective explosion...
  7. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    But is a piece of copper pipe with a firecracker and a gumball a gun? Maybe, but not a very serious one.
  8. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    Yeah... really... my name is DrPhyzx. My parents were a bit weird like that... :p
  9. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    Seems possible. A nail in the pack with a nail gun would probably have been more likely to achieve his desired result.
  10. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    I work at a national lab. All of my online presence is probably monitored by TLA agencies you didn't know existed to make sure I don't tell anyone how to make something a bit more powerful than a pipe bomb 😂.
  11. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    A volume as big as the CT allows too much expansion without reaching the pressure levels required to rupture catastrophically. Hence, the fact that the glass didn't even break. Meanwhile, to increase explosive power, you need a small and strong casing, like a pipe. In particular, you need...
  12. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    Some camp fuel canisters and fireworks? This is not the way to generate much explosive power relative to a typical pipe bomb. Ask a bomb tech if you don't believe me.
  13. Cybertruck explosion in Las Vegas; terrorism investigation underway [ADMIN WARNING: NO POLITICS]

    This was not what I would call a bomb - it certainly was not designed to do much damage outside of any vehicle - so it's not really surprising there wasn't much destructive power directed outside. Based on what is known, this seems like a suicide with a political statement attached.
  14. Cybertruck bricked

    Bummer, a bricked (non-responsive) vehicle is never fun, whatever the cause.
  15. Promised range of 500 miles ?

    I don't know what's up with the "promised". The statement made doesn't indicate they think they were "promised" or "entitled to" 500 miles, any more than Tesla was "promised" or "entitled to" his money. They said they hope that 500 miles will be available....:rolleyes:
  16. No heat in MN.. freezing!

    There have been a few reports of this issue. Operation at very cold temperatures puts additional stress on the heat pump, and it's possible that it is shutting itself off. For a ruggedized vehicle like CT, I wonder if they will consider adding resistive heating as an emergency backup in a gen2...
  17. Cybertruck China sales is coming!

    Pickup trucks are about 2.5% of cars sold in China (about 42,000/month). In the US, that number is over 20% (about 250,000/month). Meanwhile, the best selling pickup in China costs $17,000...
  18. Cybertruck China sales is coming!

    Why do people just make stuff up and post it?
  19. Cybertruck China sales is coming!

    I assume you are being sarcastic w.r.t. Tesla vs. Bentley :) (of course... the Bentley is in another price class.) Hard to say how well this will do in China: luxury pickup trucks are not popular there like they are here.


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