In the last post I talked about putting an LED instead of a light bulb on my bicycle rear light. I wasn’t satisfied with the luminosity, I was expecting something somewhat brighter, but I actually think the original incandescent bulb was much brighter. Therefore, I bought a 1W LED, and after some researching, it seems […]Read more "Changed the flux LED to a 1W LED"
Well this is quite impressive: using just a laser and a drop of water you can project the microscopic world on a wall. That’s right, you can see bacteria and other small creatures moving through the water molecules.Read more "Laser+Syringe=> Microscope"
Well, I thought of building a solar concentrator out of cds, but it ended up being just a … “reflector”. It could work by having something painted in black and placed in the center of this thing, but I’ll try to build a concentrator some time. Here are the pictures: Actually, just before sunset, a […]Read more "DIY CD Solar Concentrator -attempt"
I found an interesting article today on http://www.scientificamerican.com. It is about an exoplanet located somewhere about 150 light-years away from us. That’s a lot, let me tell you: 1 light years is the distance traveled by light in that amount of time, and given the fact that light travels at almost 300.000 km/s, that means […]Read more "Exoplanet Atmosphere Roils with Superspeed Winds"
This is the most awesome solar-powered project I’ve ever seen in terms of the effects of such a contraption. These fresnel lens are very practical due to their design.They’re very compact for their light focusing power. Focusing power, you ask? That’s just my word for this: You’ll see cement turning red hot, melting glass, and […]Read more "Fresnel Lens- Dangerous solar power! :))"
So I was just scouting for some cool mini science projects on youtube, and I accidentally found this : As it says in the video, you should rapidly put this metal in a jar, or even better, in mineral oil. Being the first metal in its group, it’s( I think) the most reactive metal. It’s […]Read more "Get LITHIUM( Li) from Rechargeable Batteries !"