Recent content by .Scott

If I catch the spirit of you question, you will be gratified to discover that one can design a laser that will continue to operate as it is being vaporized. Project Excalibur created such a design. Had it been developed, it would have been most emphatically a pulse laser.

There are two kinds of lasers, continuous wave (CW) and pulse. Since you're thinking of CW, that is what I will address. Most CW lasers work by reflecting light back and forth between two mirrors. A certain amount of energy is pumped into that system and that results in a monochromatic beam...

My backyard has "frontage" to a swamp - where there are many Common Snapping turtles. That's where I canoed past the really big one. The Alligator Snappers are listed as "Endangered". The Common Snappers are "Least Concern" (for their well-being). When I lived in the DC area (decades ago), I...

I never gave much thought about the species range of snapping turtle until I read this article - about a snapper found a few miles north of Swansea, UK. The snapper photographed in the article probably has a shell that's about a foot long. That's a full grown snapper, but not at all as big as...

I do not understand what you are doing. I have taken many 2D DFT of images - there is nothing inherently "temporal" about the process. I take it that the image you are working from has been transmitted with a signal that performs a raster scan of the image. If that is the case, then not only...

You would need to contact the manufacturer to get an authoritative answer. But I would guess it is micro-OLED technology. Micro-OLED can reach that nit rating (18,000), it's low power, and often used in this kind of application.

And, as you can tell from the image in @berkeman's post, this is the helmet that Darth Vader will be upgrading to.

That level of brightness would refer to the helmet display - where supplemental information needs to be visible even against direct sunlight. Here are the specs provided by red6ar: Turning Science Fiction Into Reality 160H FOV 1.8% OPTICAL EFFICIENCY 18000 nits BRIGHTNESS 10 ms LATENCY Our...

It's easy for me to imagine that green/yellow/red is foreground facing "out" and the light/dark blues are a view of the background facing "in". Or I can see the yellow regions with red as foreground and yellow regions without much red as background.

I never heard it, but it's in my part of the world. They tracked its splash down spot to a fairly precise location in Cape Cod bay. That location is only 100 feet deep and, according to reports, the meteorite is expected to be magnetic. So, it is reasonable to expect that someone will be able...

I'm not sure about all of your measurements. The width of an 80" TV screen is about 177cm. But overall, as long as the TV and stand look symmetric from the front, the load will be distributed approximately equally left-to-right (35+35). Back to front is another issue. Not only will you not...

I think an honorable "etc" mention in your "like McD etc" has to be The Heart Attack Grill. They likely have an antidote for anything that Lilly can conjure up. Let me contact them and see how receptive they would be for opening a more "Eastern" branch. I wouldn't want an entire hemisphere to...

Under experimental zero-g conditions where there is no limit on space, time, energy, or materials there would be no limit. Since the flake and the flake growing equipment can be restricted to a mostly flat object, you wouldn't even need to be too concerned about it forming a black hole on its...

It's up to the college, but generally speaking, the SATs are important in the US. But a word of caution, I took mine half a century ago - so I won't be your most current source of info. As I understand it, the SATs are staging a bit of a comeback.

Thanks @willyengland ! Section 5 (page numbers 38 to 41; pdf sheets 49 to 52) is titled "Extension to the Tangent" and provides a proof that refutes the general case of a rational tangent of a rational angle in degrees. The result is state in his Corollary 3.12 which reports the only...