The latest DIY ideas, techniques and tools for digital gadgetry, open code, smart hacks, and more. Processing power to the people!
High-temperature superconductor (Yttrium barium copper oxide) floating in the magnetic field of Neodymium magnets. This phenomenon is called the Meißner-Ochsenfeld-Effect and was discovered in 1933. The superconductor has to be cooled with liquid nitrogen which has a temperature of 77 K or −196 °C. If it is placed in a strong magnetic field it remains in its position. It also works if you turn the track upside down
Flickr user llemarie wanted an easy way to upload programs to an Apple I replica computer that he was building, because typing them in by hand was tedious and error prone.
But this video of Penn State’s Breazeale nuclear reactor “pulsing” is the first time I’ve ever seen any moving pictures of the phenomenon, which are somehow way more impressive. And since this is a phenomenon few of us will ever have an opportunity to witness first-hand, the 15 seconds it takes to watch the video definitely count as time well spent in my book. Note how the blue glow persists for some time after the reactor itself has been shut off.
Sunlight Labs, known for opening America’s government, had a problem when they recently moved facilities. Creating new keys for team members was becoming costly, so they figured out an alternative method of providing secure access using a WRT54GL, easily sourced components, and a trusty copy of Make: Electronics.
Really amazing. What’s going on in this cool time-lapse video from Italian YouTuber wwwperiodictableru isn’t a chemical reaction per se–it’s not oxidation or some other type of traditional corrosion. Turns out metallic or “white” tin spontaneously changes its so-called alpha crystal structure at temperatures below XX to the crumbly beta structure of “gray” tin. It’s the same stuff before and after–just different allotropes of the same element. The transformation, known as “tin pest” (Wikipedia), catalyzes itself–once it starts it just gets faster and faster.
Google has finally released Google Earth for Android 2.1 devices. This includes the Nexus One out of the box and the Motorola Droid with an upcoming update. In what seems to be a faithful mobile rendition of their popular desktop app, Google has once again brought the world into the palm of your hand.
As a man with a degree in philosophy, another degree in chemistry, and three engineers in my immediate family, I have to admit this strip from Zach Weiner of Saturday Morning Breakfast Cereal pretty much hit me right between the eyes. [Thanks, Matt Mets!]
