background preloader

The Scale of the Universe 2

The Scale of the Universe 2

Related:  Allmänna noSites trop cools

Cell Size and Scale Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. VR Gloves (my project) There are many issues with optical systems. While they've gotten decent, you need only look at the leap motion to see the problems with it. The biggest issue being that optics require line of sight. If you stick your had behind your back, it can't track it unless you have a multiple camera setup. Scale of the Universe - Be Amazed! ( 429 Votes ) Everyone knows the universe is huge, but most people don't understand how huge it really is. This article will try to show the amazingly massive scale of the universe to you. It surely is a very humbling experience! Earth - Our Home This is our Home.

Electron Microscopy Interactive Java Tutorials - Virtual Scanning Electron Microscopy Interactive Java Tutorials Virtual Scanning Electron Microscopy We have teamed up with award-winning electron microscopist Dr. Glasnost: Test if your ISP is shaping your traffic The goal of the Glasnost project is to make ISPs' traffic shaping policies transparent to their customers. To this end, we designed Glasnost tests that enable you to check whether traffic from your applications is being rate-limited (i.e., throttled) or blocked. Glasnost tests work by measuring and comparing the performance of different application flows between your host and our measurement servers.

Size of the Nanoscale Just how small is “nano?” In the International System of Units, the prefix "nano" means one-billionth, or 10-9; therefore one nanometer is one-billionth of a meter. It’s difficult to imagine just how small that is, so here are some examples: A sheet of paper is about 100,000 nanometers thick A strand of human DNA is 2.5 nanometers in diameter There are 25,400,000 nanometers in one inch A human hair is approximately 80,000- 100,000 nanometers wide A single gold atom is about a third of a nanometer in diameter On a comparative scale, if the diameter of a marble was one nanometer, then diameter of the Earth would be about one meter One nanometer is about as long as your fingernail grows in one second

namebench - Open-source DNS Benchmark Utility Are you a power-user with 5 minutes to spare? Do you want a faster internet experience? Try out namebench. 100+ Preschool Science Activities!! Preschoolers love science experiments! These science activities for kids can inspire, motivate, and encourage your kiddos to get involved in science! Preschoolers are natural little scientists! Putting ordinary things under an electron microscope You've never looked at these otherwise perfectly ordinary things like this before! Check out this gallery of everyday subjects looked at through an electron microscope. [Zeiss Micro on Flickr via] White sugar Nylon fabric A beard hair. You Have to Play This 1,600-Year-Old Viking War Game — War is Boring Viking warriors storm into the torch-lit camp of a rival clan. Outnumbered, the ambushed Norsemen are far from their boats. Their one goal: flee to a nearby castle while keeping their king alive.

10 Science Experiments to Do in the Snow Speaking entirely objectively, there is nothing better than making candy using snow. Not only do you get the fun of tromping around nature to collect the white stuff, but you're rewarded with food. If you can incorporate science into the mix, it's almost too good to be true. That brings us to molasses snow candy, otherwise known as Laura Ingalls Wilder snow candy. As many children who grew up on her books can attest, her description of making candy in the snow was a revelation.

MAME 0.151 ROMs While I appreciate the noble intent of the uploader, 'historical value' (fair use) is probably not going to cut it here. Many of these games have trademarked characters that live on in modern incarnations; some of them are still being sold by their owners, wrapped in proprietary emulators; and many of these ROMs are 'bootlegs' and circumvent encryption and copy protection in direct violation of the DMCA. Further, many of these games are still in operation, in arcades, bus stations and amusement parks around the world. Raindrops release aerosols on impact High-speed video footage has captured for the first time, what US researchers say are hundreds of tiny aerosol particles being released from raindrops when they impact with soil. The mechanical engineers at the Massachusetts Institute of Technology (MIT), who observed the “frenzied” aerosol release in action, say it could account for the earthy smell that accompanies rain after a long dry spell. You’re probably familiar with the smell in question, and you may have even wondered why it occurs when it rains. In the 1960s, a pair of Australian scientists began investigating rain’s mysterious aroma, and published a paper in Nature in which they coined the term petrichor to describe the scent of rain on dry earth.

How to inkjet-print circuits at fraction of time and cost A single-sided wiring pattern for an Arduino microcontroller was printed on a transparent sheet of coated PET film (credit: Georgia Institute of Technology) A novel method to rapidly and cheaply 3D-print electrical circuits has been developed by researchers from Georgia Tech, the University of Tokyo, and Microsoft Research. For about $300 in equipment costs, anyone can produce working electrical circuits in the 60 seconds it takes to print them using commodity inkjet printers and off-the-shelf materials.

Related:  AstronomyL'UniversoMiscellaneousAstronomia