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UNBELIEVABLY CHEAP microscopes
The asking price is less than what it would cost to ship the thing. Its clearly a scam. I have bette ... |
13-6-2019 at 21:10
by: Twospoons |
UNBELIEVABLY CHEAP microscopes
The usual rule applies - " if it seems too good to be true ...."
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13-6-2019 at 17:43
by: Twospoons |
Motherboard RAM plastic, IDE plastic, PCI plastic
https://www.digikey.co.nz/products/en/connectors-interconnects/card-edge-connectors-edgeboard-connec ... |
11-6-2019 at 16:07
by: Twospoons |
Motherboard RAM plastic, IDE plastic, PCI plastic
LCP is the likely material (liquid crystal polymer). It is rigid and good for moulding accurate deta ... |
6-6-2019 at 17:12
by: Twospoons |
The moment (or moments) that made you realize you had a passion for chemistry
No watershed moment for me. I've just always been interested in science and engineering - right from ... |
27-5-2019 at 14:07
by: Twospoons |
H2O2 as O2 source for propane/acetylene torch?
[rquote=613572&tid=150451&author=RogueRose] I also have a fridge compressor that will do 60 ... |
26-5-2019 at 12:34
by: Twospoons |
Making Aluminum (cuttings) for easier milling of Al powder
If you are going to use a saw like that it would be worth investing in a blade intended for cutting ... |
20-5-2019 at 14:18
by: Twospoons |
Building an O2 concentrator & N2 & argon extractor
I thought the chiller would be more convenient, wasn't considering cost effectiveness |
15-5-2019 at 20:41
by: Twospoons |
Building an O2 concentrator & N2 & argon extractor
[rquote=612349&tid=150025&author=RogueRose]
What I need to do that I'm trying to figure out ... |
13-5-2019 at 19:23
by: Twospoons |
Displaying elements collection in a non-standard way
Run all your LEDs off I2C linked I/O ports, and control them with an Arduino or similar. Too easy. |
27-4-2019 at 01:54
by: Twospoons |
Displaying elements collection in a non-standard way
If you want to get more creative with your compound samples, maybe they could go around the outside ... |
25-4-2019 at 21:52
by: Twospoons |
Notre Dame Smoke
Given that it is/was a catholic cathedral, maybe the Vatican should stump up for the repairs. They'r ... |
17-4-2019 at 21:45
by: Twospoons |
Modifying a diaphragm pump to achieve high vacuums - what is the limiting factor for lowest vacuum?
It probably has more to do with the relationship between swept volume and dead space in the "cylinde ... |
17-4-2019 at 21:35
by: Twospoons |
Australians discover fire yet again.
"Toxic plume, beware!" is also not a bad way to warn off would-be spectators. |
5-4-2019 at 16:31
by: Twospoons |
What's happening in this video? Electricity on fence
Given the comments re lack of rain and low humidity and 60Hz buzz, I would guess its the result of a ... |
13-3-2019 at 18:35
by: Twospoons |
Questions about water electrolysis for H2 & O2 production - what electrolyte & plate material
https://news.stanford.edu/2015/06/23/water-splitter-catalyst-062315/
So a crude approximation of ... |
28-2-2019 at 20:48
by: Twospoons |
Questions about water electrolysis for H2 & O2 production - what electrolyte & plate material
I built mine using SS plates (316 from memory) and non-woven polypropylene cloth as a separator ( th ... |
27-2-2019 at 21:15
by: Twospoons |
Cutting grooves on Al2O3 tube, carbide or diamond?
If you use Kanthal instead of nichrome you have less risk of shorting. On heating Kanthal builds a ... |
24-2-2019 at 12:41
by: Twospoons |
Use Diesel Fuel for a Stronger Vacuum with Water Aspirator?
And if you're going to use mercury then a sprengel pump might be the answer.
https://en.wikipedia.o ... |
21-2-2019 at 15:04
by: Twospoons |
Use Diesel Fuel for a Stronger Vacuum with Water Aspirator?
If you are starting to look at exotic fluids for your aspirator, maybe its time to just buy a mechan ... |
21-2-2019 at 13:25
by: Twospoons |
Verbs for measuring length, volume and other physical quantities
Sound and plumb are verbs for measuring depth. Sound is used specifically for water depth.
Titrat ... |
20-2-2019 at 14:15
by: Twospoons |
What material should be used as a vacuum seal?
Neoprene is better than silicone. The gas permeability of silicone is surprisingly high. I make a pr ... |
17-2-2019 at 12:24
by: Twospoons |
High temp conductive material for mounting cartridge heaters
I think graphite would be your best best. Not only is it good thermally, it will also act as a lubri ... |
14-2-2019 at 13:16
by: Twospoons |
Organic oxidizers which can be electrochemically recycled
With your O2 gas - have you considered ionising it at low pressure? Either RF or dielectric barrier ... |
13-2-2019 at 20:59
by: Twospoons |
What to do with lots of plastic packaging ?
You don't have lots of old newspaper to use instead?
I would hope someone would be able to re-use ... |
11-2-2019 at 14:24
by: Twospoons |
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