12Strangers

Smoke, fire, VOC and CO detectors need to be replaced at least every ten years due to the actual detecting part of the devices wearing out.

GeorgeBMac said:

There is a physical advantage to it:   When projected in front of the eye, the lens & eye would have to adjust to focus on it and thus take focus away from the main area of attention (say a driver approaching an intersection).   Aside from being distracting, that could be draining for a driver.

By putting the image directly on the retina, it avoids that (re)focusing.

But then, it seems, it would introduce a new wrinkle:   how does the beam get through the lens without being bent -- which is the purpose of the lens (which bends light by variable amounts to suit the obect of attention).

This seems more practical in a person with post cataract surgery since most of those lenses are static and don't adjust for focus.

Having owned a few cars with a HUD since 2004, most of them have some have a bit of adjustment for the perceived distance of the display. The 2 that were fixed distance were at the perceived to be at the front of the car, the adjustable ones have allowed for moving the perceived distance up to about 20’ from the front windshield. This allows you to see the information without refocusing from the traffic or whatever else is in front of you. F1 drivers have had these since roughly 1995 and, of course, combat pilots have had HUD for much longer. 

I bought a Mac Mini w/an M1 processor and demand that Microsoft build and support the same OS that they use for their ARM based products. 

hexclock said:

mike1 said:

EU seems bent on penalizing success at every opportunity.

It’s called socialism. 

Don’t try to drag your political views in to this issue, this doesn’t have anything to do with socialism.

Just for the record, I am on Apple’s side.

waveparticle said:

There is a confusion in this article. Silicon is not metal. The problem metal is copper. 

Silicon is, in fact, a metal. Albeit, one that has some non-metal properties.