breinrules
- Gadgets
Movie Phone
The stunning colors and contrast on the Samsung Show's 3.2-inch OLED screen would be enough to make it a multimedia wonder. But the phone really earns its name from an integrated projector that displays 100-inch images. Other "pico" projectors are themselves bigger than iPods and attach to a cellphone with a cable. By squeezing a projector into the phone, Samsung ensures that you always have a big screen handy—say, for viewing movies on an airplane seat back or photos on a tabletop.
5.12.2009 at 03:51am - Comment by breinrulesBetter buy the chinese projector phone. I think its less than 200$ but with a better projector resolution of 640x480 compared to samsung's 480x320. Expect it to be bulky and not quite durable bec. its chinese. If you want the best performance and durability then go for samsung. What edition should we call these phones? Ultra Projector? Ultra show? Ultra see? Ultra View? What do you think?
- Science
When Is Carbon an Electrical Conductor?
And the $64,000 question is ... does graphite conduct electricity? It certainly does! The video demonstration displays this quite convincingly. Graphite is an interesting material, an allotrope of carbon (as is diamond). It displays properties of both metals, and nonmetals. However, like a metal, graphite is a very good conductor of electricity due to the mobility of the electrons in its outer valence shells.
5.12.2009 at 02:47am - Comment by breinrulesTo smurrah. High resistance doesnt mean lightsabers. If thats the case then il just replace my light bulb with wood(which has a high resistance). You are right about resistance giving heat, but there are 2 reasons why a wire gives up heat 1. Resistance 2. Current, as we know conductors like wires have different sizes because they have different uses and different current usage. A thin wire for example is used to flow small current to devices like phones and a thick wire flow large current like in a powerplant. If you flow a large current in a small wire, what will happen? I think you know already, thats the reason why light bulb filaments are super thin. To dimensio Resistance has little to do with the lightsabers. The lead burns due to overflowing of current in the lead. If you apply a lesser voltage on the lead, i think it wont burn. (TO PHD'S; CORRECT ME IF IM WRONG)
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December 2009: Best of What's New
In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.
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