Putting 20,000 volts across something will cause current (amps) to flow thru it. How much current flows thru depends on voltage and the resistance. I don’t know exactly what you did, but I can safely guess you did not, for one reason or another, actually put 20,000 volts across yourself. It was most likely a case of…

I’m going to show this to every person that claims that its not the volts that kill you, it’s the amps.

I=V/R

4. Push gatekeepers like Facebook and Google to “continue their efforts” to fight fake news without forming centralized determination of what is or isn’t true.

He seems more concerned over where the data is going than how it gets there. Net neutrality doesn’t adress any of the problems on the list.

“Also, with straight-cut gears, you don’t need any synchronizers for the gears,”

It’s in the training. Number one thing that’s drilled is “Control the scene” so as soon as someone doesnt fully cooperate, they become number one priority. Another method that’s taught is an escalation of force, where disagreement results in yelling, yelling gets physical restrains, and any pushing results in arrest.

I’ve been really interested in using metal printed parts for tooling inserts (Mold cores and cavities, draw dies/punches) As those are expensive to machine, and are made in very limited quantities. However, I have been able to get passed the relatively low precision involved. It’s ok for some features of the part, but…

That’s the first I heard of double helical gears being more efficient than other types. Typically, gears between parallel shafts all have efficiencies of 94%-98%, virtually regardless of type (but it does depend on the pressure angle). Efficiencies start dropping when the shafts are not parallel.

To the best of my knowledge any polymers with properties similar to metals get that way by using filler (typically glass fibers, but sometimes other fibers), and not the polymer alone. So while we can print in say nylon, we can’t prin’t in the really strong glass filled nylon.

I was reading of a company trying to make very large metal printed parts via electron beam melting in a very large vacuum chamber. They acted confident, then again press releases typically are.

We have an internal tool shop, while outsourcing our non concept 3d printing needs to an outside supplier. We used a SLA process with something called “bluestone” material (which was actually green) that was supposed to be tailor made for injection molding tooling, due to it’s ability to withstand high temperatures.…

I tried making printed inserts for injection molding tooling. The lack of accuracy was a show stopper. Basically, you can make a 3d printed insert work, but only for the simplest molded part geometries. So you could claim that it works, but almost never for the parts you actually need.

“Ford, for example, said a 3D-printed spoiler could way less than half a cast metal counterpart.”

So does it somehow measure power, or does it simply predict it based on rpm/throttle position?

Forget the manual transmission, if you want a really impractical autonomous car, fit it with a manual coolant pump. The whole time it drives you around, you need to turn a crank that keeps the motors and batteries cool. If you stop, it will catch fire and kill you.

Really like the video idea! 2 small points

I don’t think it matters. When the car is landing on its roof, the force is going along two different vectors (so think of it as two forces) one going perpendicular to the ground, the other going in the direction of travel. The roof only has to withstand the first, while the second force determines how many times the…

It’s an option for the russian market. A cars way of saying “Congratulations!” when you crash.

Diminishing returns. You can see it everywhere.