You'd think with all that electronics it would be smart enough to use real brakes every now and then. The plug in hybrid Prius runs the gas engine every 100 miles or so.
I don't think that is a good feel, you sort of get a feel for how fast you slow down with regenerative braking and throwing real brakes into the mix randomly sometimes would make for a horrible driving experience.
Better to have a reminder, surely the car could figure that one out.
Some cars do this. Audi and Porsche (if I recall correctly) use the disc brakes for the first couple stops each drive to knock off the rust if there's any build up. I think I remember reading that Ford uses the real brakes if you're under 5mph. I'm sure other manufacturers do something similar (other than Tesla which apparently doesn't do anything to help).
Yes, it's studied. Rust and metal have different frictional properties, and the rotors produce different torques when the brakes are applied. This results in a sort of uneven shuddering when you use the brakes if they're heavily corroded.
It's not immediately deadly, but your brakes are one of the most important safety systems on the vehicle. They should be in good working order.
Totally, I'm not thinking for a second that you are wrong there. I'm not saying rust on brakes isn't bad. What I'm questioning is whether rust buildup is an actual issue happening for most EV drivers right now.
I'm genuinely curious because, for no good reason, I take pride in the fact that most trips I don't even touch the brake pedal other than to come to a complete stop and only when parking, etc where you can't regen all the way to a stop.
As someone with a self proclaimed fetish I have to ask if you have ever tried working with the material? I find even the most basic manipulation to be wild compared to other common metals.
I was sanding and polishing a long handled titanium spoon to make it more smooth (slowly) by hand and the friction from that quickly made it too hot to hold. It's thermal conductivity is 1/10th of aluminum and roughly 1/2 of stainless steel.
Another fun thing is to anodize it to different colors. Compared to aluminum it can be achieved without the use of caustic chemicals.
One downside is it would motivate companies to get intellectual property registered under a trademark with indefinite protection rather than copyright. Even with our current lifetime + 70 year protection we have companies like Disney getting characters registered as a trademark.
I had a 48C that fed on those batteries. They lasted forever. I had to retire mine when the battery door broke and the batteries wouldn’t stay in. It was a great calculator from HP’s heyday.
Calculators are large enough that it should be possible to fit AAA or AA sized batteries, even possibly a 18650. They're lower power enough that a CR3202 lasts a long enough time but it always ends up dying at the most inconvenient time and they're really the only device I have that needs CR3202.
You'd need two AAs or AAAs for a CR2032's voltage. While it would last a lot longer, it's also a lot more volume. Also, the diameter is going to be a problem for many calculators; e.g., the R47 being discussed here is 12mm thick, a AA has a 14.5mm diameter and a AA has a 10.5mm diameter.
Huh, interesting points. I wouldn’t have thought of that because I ended up with a passel of widgets using those cells, including car key fobs, Apple AirTags, and a number of IoT sensors around the house. I own exactly a single flashlight that uses an 18650. Go figure!
Places in California has this problem too. Installing solar panels today could result in a larger electricity bill than not having them.
Getting solar panels forces you onto a plan in which they charge more per kwh pulled from the grid. The surplus electricity is only credited at the generation cost which is only 1/4 the total cost per kwh. (Delivery costs is 3x the price of electricity).
So if you want to go solar to save money you need both batteries and solar panels which is not an insignificant amount of money.
