Your Age on Other Worlds Want to melt those years away? Travel to an outer planet! <div class="js-required"><hr> This Page requires a Javascript capable browser <hr></div> Fill in your birthdate below in the space indicated. The Days (And Years) Of Our Lives Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. The earth is in motion. The top-like rotation of the earth on its axis is how we define the day. The revolution of the earth around the sun is how we define the year. We all learn in grade school that the planets move at differing rates around the sun. Why the huge differences in periods? Johannes Kepler Tycho Brahe Kepler briefly worked with the great Danish observational astronomer, Tycho Brahe. Here you see a planet in a very elliptical orbit. Kepler's third law is the one that interests us the most. Let's just solve for the period by taking the square root of both sides: The Gravity Of The Situation Isaac Newton ©2000 Ron Hipschman
Grow Your Own Bioluminescent Algae - Instructables - DIY, How To You may have memories of running after fireflies with hands outstretched on a warm summer evening. You may have even watched some discovery channel documentary on the mysteries of the deep sea and marveled at those 'glowing' organisms featured. Chances are however, you probably haven't heard too much about the plethora of other bioluminescent creatures inhabiting this planet. Bioluminescence (literally meaning living light) occurs within many living organisms, although, most are relegated to the deep sea. This chemical reaction involves the oxidation of Luciferin (just a name for a class of biological light emitting pigments). While related, the name doesn't come from any devilish origins, but rather the latin 'lucifer' meaning "light bringer". Today however, we'll focus on a particular light emitting alga known as Pyrocystis fusiformis. Here's a video of one such concentration in a bay in australia.
25 Websites that will make you look like a Genius 1. Khan Academy Have you ever wanted to pick up a subject you’re not well-versed in, but you didn’t have the money to invest in a college course? Khan Academy aims to provide education at the collegiate level for anyone who wants it. 2. This isn’t the first time I’ve recommended this language-teaching website (and app), and it certainly won’t be the last. 3. Guitar is one of the few instruments out there that’s actually pretty easy to learn if you’re a little older, making it one of the most accessible instruments. 4. Founded by Michael Chu, Cooking for Engineers goes further than just providing recipes. 5. Or Nick the Dating Specialist is a website that wants to help guys be better dates. 6. When we think of exercising and gym techniques, we typically think of bodybuilders and jocks from high school. 7. As much as I would love an education at MIT, that isn’t really in the cards. 8. 9. Have you ever wanted to ask someone famous a question, but you suffer from never having the chance?
free university lectures - computer science, mathematics, physic Whether your goal is to earn a promotion, graduate at the top of your class, or just accelerate your life, lectures can help get you there. Our archives of lectures cover a huge range of topics and have all been handpicked and carefully designed by experienced instructors throughout the world who are dedicated to helping you take the next step toward meeting your career goals. Lifelong learns can turn their free time turn into self-improvement time. The online lectures on this list are more than lecture notes or a slideshow on a topic -- they were designed for audiences like you, with carefully sequenced themes and topics taught by veteran educators, and often with additional resources for your own independent study. The lectures are available to anybody, completely free of charge. Lecture courses are a valid and vital learning tool, and may be one of the best methods of learning available.
Cooked Books Was there any way of looking at Enron's books and — not knowing anything about the company's specific accounting practices — determining whether the books had been cooked? There may have been, and the mathematical principle involved is easily stated, but counterintuitive. Benford's Law states that in a wide variety of circumstances numbers as diverse as the drainage areas of rivers, physical properties of chemicals, populations of small towns, figures in a newspaper or magazine, and the half-lives of radioactive atoms begin disproportionately with the digit "1." Specifically, they begin with "1" about 30 percent of the time, with "2" about 18 percent of the time, with "3" about 12.5 percent of the time, and with larger digits progressively less often. Less than 5 percent of the numbers in these circumstances begin with the digit "9." Tipped Off by Dirty Pages The following example suggests why collections of numbers governed by Benford's Law arise so frequently: Suspiciously High Digits
MAKE: Blog: Flashback: Home Mycology Lab Start a cultural revolution in your own house with Philip Ross’ Home Mycology Lab project from MAKE Volume 07, our Backyard Biology issue. Mushrooms are fascinating (and tasty), and this article introduces you to what it takes to make them grow. I love this illustration: Philip offers a detailed how-to on making your own miniature mycology lab using an off-the-shelf home air purifier with a HEPA filter to create a “clean box” pristine environment. Philip Ross has extensive experience with mushrooms, and incorporates them (as well as plant life) into his artwork. Check out Home Mycology Lab in our Digital Edition. Goli Mohammadi I’m senior editor at MAKE and have worked on MAKE magazine since the first issue. The maker movement provides me with endless inspiration, and I love shining light on the incredible makers in our community. Contact me at goli (at) makermedia (dot) com. Related
My Birthday Facts How Many of Me Are There