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Thanks! I meant to make one suggestion, but forgot : ) . Could you give the wattage of the microwave you were using, or doesn't it matter? My 1000W one had the liquid boiling after 3 mins or so, so I turned the power down to medium and kept it bubbling for the remainder of the time. Dunno if that was right, wrong, or "who cares?" : ) Also, you don't mention stirring, but I suppose I was right to do it throughout?Thanks again,Graham.
It's not very clear in either the article or the video exactly what we should see.I got a light tea coloured liquid which under a uv flashlight had a tinge of green.I take it that's it?It's very interesting to have made quantum dots at all, but I was hoping for something a little more.. dramatic, like the bottles of bright colours usually used as illustrations of quantum dots. But it did work, and, like I said, it's very interesting and exciting to have made quantum dots at all, especially in the kitchen and quite easily!
Hi - I'm wondering If you've tried reversing the proportions? Say 89% aluminium and 11% copper? Would the result be nearly as light as aluminium but stronger? and/or harder?Thanks!
Hi - Very interesting! Sorry if it's there and I missed it, but what kind of speed can it draw a circle at?
I don't mean to be snarky, but I love constructional articles that include buying the main bit off the shelf! It's like, "Build your own full-size battleship" - Parts: 1) Full-size battleship making machine.
Taking someone else's Kickstarter iidea??
Shouldn't a plane blade be slightly curved?
It's DISASSEMBLE! Fyi's.
Thanks for answering.To be honest, I haven't started the practicals yet, as the trouble for me is at the planning stage.As I understand it, the emission from the laser itself is cone-shaped. What I'd like is a very thin parallel thread of light, so that the area of burning on the target is fairly insensitive to the distance from the laser.As far as I can see, a lens won't do that. I've seen mention of a "collimator lens", which apparently produces a thread, presumably by blocking all the light except in a small area at the centre of the beam. (Luckily, most of the energy of the beam is there.) But I'm surprised not to find such a thing on the Aixix site, or indeed anywhere else. Am I going in the right direction, or is there a better way? Thanks very much again,
It may need a little more explaining in the laser part, about the lens and focus and how to achieve a burning laser.""I plan on expanding that soon enough!"Did this get done? Because I too am having problems with the focusing!