These "Dippy Birds" have been around for years, and you can't fool us - you've always wanted one. Now's your chance! But...
(10/29/09) These "Dippy Birds" have been around for years, and you can't fool us - you've always wanted one. Now's your chance! But do you understand how it works? Do you get the complex relationship between chemistry and physics that makes this simple heat engine operate? Is it a perpetual motion machine, or is it something more than that? Well, the answer is it's more than that. The Second Law of Thermodynamics states (paraphrased) that energy can neither be created nor destroyed in a closed system. So how does that relate to our little glass birdie here? The goop in his butt is methylene chloride has a very low boiling point, and therefore evaporates quickly. At room temperature, one or two degrees temperature difference causes the bright red chemical to climb to his head. Suddenly topheavy, he falls over. The felt head, soaked in the water from the cup, cools the methylene chloride, and it drains back to the bottom. The bird rights itself, and it starts all over again. Is this perpetual...See less
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Most folks never realize how cute microbes can be when expanded 1,000,000 times and then fashioned into cuddly plush....
(10/29/09) Most folks never realize how cute microbes can be when expanded 1,000,000 times and then fashioned into cuddly plush. Until now, that is. Keep one on your desktop to remind yourself that there is an "invisible" universe out there filled with very small things that can do incredible damage to much bigger things. Then go and wash your hands. Lather, rinse, repeat. Your choice of (see additional images for pics of each): * New!Swine Flu (Influenza A virus H1N1) See what happens when you go kissing pigs? You gets the swine flu! * Sperm Cell (Spermatozoon) Our little man's man is the stuff of legends. You can bank on it. * Human Ovum (Human Ovum) Our egg cell would love to be the newest member of your family -- or get donated to someone special! * Gangrene (Clostridium perfringens) Gangrene sets in when you least expect it. * Toxoplasmosis(Toxoplasma gondii) Don't play with cat scat. 'Nuff said. * Toxic Mold (Stachybotrys chartarum) Is toxic mold lurking in your basement? * Chicken Pox...See less
$7.99 available at thinkgeek.com
* Each tiny shot is loaded with 160mg of caffeine and tons of other health boosters. * As much caffeine as two cans of...
(10/29/09) * Each tiny shot is loaded with 160mg of caffeine and tons of other health boosters. * As much caffeine as two cans of Red Bull® * Powered with goodies like Elderberry, Ginseng, Biotin, and Folic Acid. * Provides 5-8 hours of smooth energy. * No sugar, so no aftercrash. * Each six pack contains 6 (duh) 1.69oz bottles.See less
$19.99 available at thinkgeek.com
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