Scientific units

Scientific units

Linked sites are scientific units to get updates before I next note them. CAUTION: This site describes open source hardware and has open source software. Look here for hints and ideas for electronic and other hobbyists, as well as some lighting related info that you might find useful or at least interesting. You may want to come back here every few months.

I have an LED Main Page. Don’s Lighting Info Center, go here to see lots of information about many forms of lighting. Here you can find basic and advanced theory, other stuff including troubleshooting and repair hints. Lots of info on incandescent, halogen, fluorescent, compact fluorescent, HID lamps such as mercury, metal halide, high pressure sodium, and short arc lamps! Also info on neon, low pressure sodium, oddballs such as green neon lamps. Even a bit on UV lamps, night lights, lightbulbs lasting a century, electronic ballasts, and carbon arcs.

Also better info on lamps for growing plants. Links to where to get dangerous 15 to 190 milliwatt green laser pointers and 1-watt blue ones as visible as 60-800 mW red lasers would be! NEW – orangish-yellow laser pointers, blue ones, violet ones! Also stuff on He-Ne lasers and more. For links to unmodified official versions of Sam Goldwasser’s Laser FAQ, most of them leading to V. 35-plus meg of good stuff, plus over 350 GIFs and JPEGs as of V.

Don’s Xenon Flash and Strobe Page! Lots of schematics, helpful hints, precautions, xenon flash basics, parts sources, mad ideas, etc. Includes some nice stuff on Tesla coils in general and on solid state Tesla coils. I have since incurred a failure to be in that webring. Progress continued slowly on one of a few previously noted largish solid state Tesla coils until being backburnered in late 2008.

Even more things now, like Jacobs ladders, plasma spheres, neon lamp oscillators, etc. To find out how these work and how to make these, go here! Visible line spectra of various elements and a few common light sources. Hints to make your PC run faster. Includes Dan Barclay’s patch to blazingly improve math coprocessor usage by Quick Basic 4.

5 and other Microsoft programming languages. Also how to get higher math speed by compromising the math coprocessor precision in some C compilers! Also simple stuff like more memory, registry cleaning, and some fairly-easy-and-safe manual registry editing and tweeks! 2017, most pre-2005 stuff is moved to a linked page. This may apply mostly only to some pre-2000 Microsoft programming languages or “programming environments”. Already here: Plans to get big sound from a cheap 5-inch fullrange, and amazing lower bass from a Radio Shack 10 inch woofer at home or in a car with a trunk.

Also: Plans for very cost-effective bass bins, also how to make piezo tweeters sound more natural. Many web resources good for adventurous tinkerers. As of now, DOS executables are available for all programs available here and BASIC source code is posted for all freeware available here. Requirements are usually a version of DOS absolutely minimum of no more than 2.