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Lost 5 L HNO3 stored in HDPE Kanister I had the same experience many years ago. 10 litre HDPE container with a pinhole leak in a seam. Luc ...	6-6-2021 at 13:32 by: Twospoons
Any use for broken/crushed quartz glass from tubes - or ULTRA high output UVC bulbs - 12-16KW/bulb? [rquote=660938&tid=157531&author=Fyndium]Household mains is not even able to supply single o ...	30-5-2021 at 14:37 by: Twospoons
Any use for broken/crushed quartz glass from tubes - or ULTRA high output UVC bulbs - 12-16KW/bulb? Melt cast them into a thick disk and then grind a parabolic primary mirror for a telescope. The very ...	29-5-2021 at 02:02 by: Twospoons
Ideas for Engineering In-Demand Lab Equipment [rquote=660792&tid=157522&author=LabDIRECT] My first thought was a heating mantle/hot pla ...	26-5-2021 at 19:22 by: Twospoons
Red Cabbage pH test For my daughters 7th birthday (a long time ago) we had a harry potter theme. Red cabbage was centra ...	20-5-2021 at 20:12 by: Twospoons
Does anyone have experience with silicon wafers? So you want to invest half a million bucks into equipment to make your own chips? The closest I'v ...	19-5-2021 at 20:37 by: Twospoons
how would it change if world population went to 500m? World pop was ~500 million around 1600AD. So theres some clues there. Of course we have a lot more k ...	16-5-2021 at 02:07 by: Twospoons
wall wart as power supply for electrolysis TBH you'd be better off investing in a proper variable bench power supply. It will (should) be more ...	14-5-2021 at 18:44 by: Twospoons
Flashlight power and grow light power I saw a paper once that suggested broadband lighting was better for plants. The study found that so ...	2-5-2021 at 13:53 by: Twospoons
Low resistance electrolytic cell divider [rquote=656703&tid=157195&author=goldberg] U-shaped tube filled with KCl solution gelled by ...	20-3-2021 at 20:11 by: Twospoons
Large Quartz Tubes For Cheap? - Patio Heater See if it will pass short UV light. If it does then its quartz. [Edited on 18-3-2021 by Twospoons]	17-3-2021 at 16:20 by: Twospoons
Question about pressure If adding a stirbar is going to break the vessel, then you are already operating too close to the fa ...	21-2-2021 at 15:25 by: Twospoons
Most expensive mistakes you've made? Blew up a $1000 magnetic field probe while poking around inside a power supply. Lucky for me the $25 ...	14-2-2021 at 11:11 by: Twospoons
How to handle powders without dusting? [rquote=653920&tid=155805&author=Fyndium] What are efficient methods at neutralizing static ...	29-1-2021 at 00:36 by: Twospoons
Sulfuric & Nitric Acid In Australia Watch those plastic drums! The plastic "jerry can" style containers my Nitric came in developed tiny ...	20-1-2021 at 14:00 by: Twospoons
Low(est) boiling point salts? copper bromide lasers are typically operated around 400C, so you could try that.	18-1-2021 at 19:51 by: Twospoons
magnesium aluminate refractory up to 1800C. You will want to remove as much sodium as possible - any residue may act as a flux.	16-1-2021 at 21:30 by: Twospoons
Help understanding DIY discharge tube emission spectrums Also note that silicone is quite permeable to gasses.	13-1-2021 at 18:43 by: Twospoons
Radiophobia? Do you supposed they've checked for Americium based smoke detectors yet?	11-1-2021 at 17:07 by: Twospoons
Why is there no electronic optical pyrometer ? Out of curiosity, was it a doped wafer you tried? Doping might degrade transmission in the mid IR. ...	4-1-2021 at 19:09 by: Twospoons
Why is there no electronic optical pyrometer ? I absolutely meant silicon, not silica. Theres a reason silicon is used as a optical material for C ...	4-1-2021 at 12:21 by: Twospoons
Why is there no electronic optical pyrometer ? If you make the window of your furnace peephole from silicon then your optical pyrometer should work ...	3-1-2021 at 13:34 by: Twospoons
Why did TNT become so universal? [rquote=651797&tid=156784&author=Delta-R] Was it purely a result of it’s insensitivity an ...	21-12-2020 at 21:15 by: Twospoons
The insanity that is OHS Thing is its much better to let kids suffer a minor injury from such simple chems, to act as a remin ...	11-12-2020 at 00:55 by: Twospoons
DIY temperature probe for hotplate, help! [rquote=650621&tid=156587&author=p4rtridg3]After testing some LM35s I got online, I can conf ...	7-12-2020 at 14:23 by: Twospoons
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