1
Why three prongs?
Why do AC cords need three prongs? If there is no positive or negative in AC systems, why do we have HOT and NEUTRAL? I attempt to shed light on some of these mysteries.
William Beaty
Contains both useful science education and TOTAL CRACK-BRAINED DETRIUS. Amateur science resources, many new science projects for kids, textbook errors, Tesla coils, physics teaching, electricity articles, electrostatics projects. Weird science including antigrav, free energy, ball lightning, anomaly reporting, DIY…
- Popular posts
- 7
- Total points
- 2,020
- HN comments
- 1,225
- Rank
- #827 personal
Visit amasci.com → On Hacker News Jun 2012 – Jan 2025
Science & Space 7Hardware & Electronics 4Society, Policy & Culture 2Life, Learning & Writing 1
2
Invisible Electrostatic Wall at 3M plant (1996)
SESSION 7: SPECIAL SESSION, 17th Annual EOS/ESD Symposium THURSDAY, SEPTEMBER 14, 1995, 8:00 am SESSION 7: SPECIAL SESSION: ELECTROSTATIC CONSIDERATIONS IN INDUSTRY MODERATOR: D. Swenson, 3M 7.7 CASE STUDY - LARGE PLASTIC WEB ELECTROSTATIC PROBLEMS, RESULTS, AND CURE, D. Swenson, 3M Company Tremendous static charge…
3
Why is electricity so hard to understand? (1989)
HEY NEWS-YCOMBINATOR , I think you're looking for my articles explaining electricity. This is the 1989 page of raw unedited notes NOT A FRIGGIN' ARTICLE!!! You're all critiquing a wad of crap written on napkins, while not actually reading any of the finished articles. WHY?! Perhaps try these instead: ...
4
“Invisible Electrostatic Wall” at 3M adhesive tape plant (1996)
SESSION 7: SPECIAL SESSION, 17th Annual EOS/ESD Symposium THURSDAY, SEPTEMBER 14, 1995, 8:00 am SESSION 7: SPECIAL SESSION: ELECTROSTATIC CONSIDERATIONS IN INDUSTRY MODERATOR: D. Swenson, 3M 7.7 CASE STUDY - LARGE PLASTIC WEB ELECTROSTATIC PROBLEMS, RESULTS, AND CURE, D. Swenson, 3M Company Tremendous static charge…
5
Holography without Lasers: Hand-drawn Holograms (1999)
I've stumbled across a technique for drawing holograms directly upon a plastic plate by hand. It sounds impossible, but I've been sitting on the livingroom sofa making holographic images of floating polyhedra, words, 3D starfields, opaque objects, etc. No laser, no isolation table, no darkroom, no expensive film…
6
What is Electricity? (1996)
What is electricity? This question is impossible to answer because the word " Electricity " has several contradictory meanings. These different meanings are incompatible, and the contradictions confuse everyone. If you don't understand electricity, you're not alone. Even teachers, engineers, and scientists have a hard…
7
How transistors really work (1995)
Most technician textbooks do a very poor job of explaining the details of transistors' internal workings. First they assume that the Base current is somehow controlling the Collector current, then they try to explain how one current can affect another. These explanations invariably fail because Bipolar transistors…