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The capacitor arrow... Would it work?
A capacitor with enough stored energy to guarantee a kill would have to be pretty big - and you'd ha ... |
20-5-2023 at 17:10
by: Twospoons |
Are plastics really difficult to recycle ?
A quick search on [url=https://phys.org/search/?search=plastic+recycling&s=0]Phys.Org[/url] show ... |
28-4-2023 at 19:18
by: Twospoons |
Are plastics really difficult to recycle ?
[rquote=683437&tid=159508&author=metalresearcher]
This is *not* a way to continue using dis ... |
27-4-2023 at 15:09
by: Twospoons |
Can somebody explain why this happens? Capacitor discharge through a piece of foil shatters a ceramic tile
This is not much different to a lithotripter, which fires an arc underwater to create a shockwave th ... |
8-4-2023 at 19:31
by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process
I honestly dont know how much delta T is needed for this to work - probably depends a lot on the sol ... |
16-3-2023 at 14:13
by: Twospoons |
Gamma Spectroscopy at The Lowest Possible Cost (<$150 USD)
Interesting project. From an EE perspective I'd change the HV supply to a simple regulated flyback, ... |
15-3-2023 at 12:10
by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process
As I recall it took a while for the temperature profile to establish and stabilise, by which I mean ... |
12-3-2023 at 17:25
by: Twospoons |
Growing a CuSO4 crystal using a "hydrothermal" process
I just stuck a thermocouple into cylinder, briefly. |
12-3-2023 at 12:10
by: Twospoons |
Using ChatGPT to answer chemistry questions
I wouldn't trust it either. I asked it to create some Excel code, which it did. On close inspection ... |
25-2-2023 at 14:03
by: Twospoons |
X-Ray Fluorescence Spectroscopy Using Affordable CCD/CMOS Detectors?
What spectrum do you get if you turn the xrays off (dark image)? That would show up fixed pattern ... |
16-2-2023 at 12:14
by: Twospoons |
Radio receiver design
You would do better posting technical questions like this over on https://www.eevblog.com/forum/inde ... |
13-2-2023 at 12:08
by: Twospoons |
DIY homemade hydrothermal crystallization device
I've used the hydrothermal method to rapidly grow CuSO4 crystals.
https://www.sciencemadness.org/wh ... |
9-2-2023 at 11:59
by: Twospoons |
Fortifying UV curing 3d printer acrylic resin with polyester resin?
If you use the polyester specific UV activated catalyst then the working lifetime shouldn't be an is ... |
7-2-2023 at 18:25
by: Twospoons |
Fortifying UV curing 3d printer acrylic resin with polyester resin?
[rquote=681266&tid=159305&author=Mateo_swe]Ok, but its quite cool to make a DIY resin and ch ... |
6-2-2023 at 14:05
by: Twospoons |
Fortifying UV curing 3d printer acrylic resin with polyester resin?
Resin based 3d printing is not new. Its been around for a very long time, probably at least 20 years ... |
5-2-2023 at 19:11
by: Twospoons |
Exploding Lithium thionyl chloride battery cleanup?
A colleague has just had a small lithium thionyl chloride battery explode on his desk - not sure why ... |
2-2-2023 at 14:47
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I saw that too. Interesting, relatively simple, but a PITA to retune for each thing you want to look ... |
24-1-2023 at 20:07
by: Twospoons |
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
As I recall the whole purpose of the denaturants is to make the alcohol undrinkable (and therefore n ... |
11-1-2023 at 20:25
by: Twospoons |
hho electrolysis plate configuration
Without appropriate catalytic electrodes water splitting is only ~50% efficient, (from memory - dont ... |
2-1-2023 at 21:57
by: Twospoons |
hho electrolysis plate configuration
I only tried to fill balloons once. That ended badly when one balloon slipped off and the other for ... |
29-12-2022 at 17:13
by: Twospoons |
hho electrolysis plate configuration
[rquote=679878&tid=159183&author=JohnnyBuckminster]
[b]@Twospoons,[/b] What type of membr ... |
29-12-2022 at 12:07
by: Twospoons |
hho electrolysis plate configuration
I built a four plate version of type 2 using stainless steel and strong NaOH soln. Worked very well ... |
28-12-2022 at 12:07
by: Twospoons |
Portable DC source for electric arc-Ruby synthesis by the Henry Moissan method
One other advantage of buying a stick welder for this is when you have finished playing with your ar ... |
26-12-2022 at 13:44
by: Twospoons |
Portable DC source for electric arc-Ruby synthesis by the Henry Moissan method
The difficulty you face with using server power supplies is the internal overcurrent protection - ex ... |
25-12-2022 at 11:46
by: Twospoons |
Unfamiliar Microscope
It is possible to take pictures through a microscope using a phone camera, but it requires a very st ... |
18-11-2022 at 13:07
by: Twospoons |
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