Thank you for enlightening me. I read the wikipedia page on radiometers: https://en.wikipedia.org/wiki/...

I learned that radiometers do NOT work by "light pressure" which was Crooke's, the inventor's, hypothesis. Radiometers do NOT spin in a perfect vacuum. The two mechanisms that explain why they spin were proposed by the likes of Einstein (relativity guy), Maxwell (equations guy), and Reynolds (number, not aluminum, guy).

Real question here-- I ask out of partial ignorance.

  How is this different from say using light, a form of electromagnetic radiation? Everyone has seen a radiometer (the thing with the black and white vanes that spins when in light. My thought experiment is if you have a directional light source that is pointed at a radiometer, that will cause the radiometer to spin, i.e. impart a thrust on the radiometer. That means there must be an equal and opposite force imparted on the light source. I would imagine this would work in a vacuum-- it is light after all. Isn't this another example of electromagnetic radiation (light) giving thrust?

Looking at the linked video, I was amazed to see the number of surrounding cars and objects being tracked. Also looking at the video, you could tell for almost a second that the trailing car was going to be a problem. Perhaps self driving cars that realize they are going to be rear ended could blink/flash lights, blow a LOUD rear facing horn, or something to catch the attention of the trailing driver.

Putting a cell phone under tinfoil hat...
1) Phone in paraboloid reflecting dish. Better way to irradiate your brain.
2) Partial Faraday cage around cell phone. Less signal so phone increases transmit power.
3) Profit!

Given the endless stream of vulnerabilities and the treadmill of updating Flash, I decided to uninstall Flash. Given the hate that Adobe/Flash receives on Slashdot, I would imagine that a significant fraction of the Slashdot readership has uninstalled Flash (do you keep statistics on this?).

Can you please help the web move on from the failed experiment that was Flash?

Umm... Lets see. Fiorina's term as CEO ended in 2005. Hurd was CEO from 2005 till mid 2010. Apothekar takes over in mid 2010 and a year later Autonomy is acquired.

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

I'm no fan of Fiorina but it's a stretch to lay this on Fiorina. The acquisition was probably started under Hurd but Apothekar had a year to do due diligence and back out.

Can't say that I miss it.

Missing a BurmaShave! somewhere in there.

Sally sells seashells by the seashore?
How many chucks would woodchuck chuck if a woodchuck could chuck wood?

In a year or two, after the next version comes out, you won't want to wear this any more. Battery life won't matter. Problem solved.

I think the biggest difference between a Rolex and an iWatch is obsolescence. A 50 year old Rolex is still a nice watch. A one year old iWatch (when the new version comes out) is an ugly paperweight.

... isn't, but I hear his agent is.

Tell your friend Veronica
It's time to celebrate Chanukah.

What if we agree to spell out obscure acronyms the first time? Yes, I can google/bing it to find likely candidates, but what if you make life easier for all involved and actually use Border Gateway Protocol (BGP)? Mmmmkay?

If after upgrading your drivers, your device no longer works, I don't think most users would make the distinction between PID set to 0 vs set to something else. Not working, bricking, de-functionalized, unrecognized by the driver, etc are rather fine distinctions. It either works the way it did or it doesn't.