From MAKE: New in the Maker Shed: Alpha Particle Detecting Geiger Counter Kit

Why spend $400+ on a Geiger Counter when you can build your own for a fraction of the price? This new Geiger Counter Kit, available in the Maker Shed, was featured in MAKE: Volume 29 and is able to detect α(alpha), β(beta) and γ(gamma) radiation using the included GMT-01 tube. The simple to build kit can be soldered together in a few hours and is designed to be reliable and long lasting. When complete, the Geiger counter will output a click and flash an LED each time a radioactive particle is detected. The unit has two digital TTL logic pulse outputs that allow connection to a number of accessory instruments such as a a data logger, Digital Meter, or RS-232 adapter for connection to a PC (none included.)

Features

  • GMT-01 tube detects α(alpha) β(beta) and γ(gamma) radiation
  • 2 digital outputs
  • Flashing LED and audio clicker alert you to detected radiation.
  • Robust circuit design
  • 9V battery not included

 

from MAKE

From Ars Technica: Microsoft publishes fancy-pants heterogeneous parallel GPGPU C++ AMP specification


Microsoft has published the specification for C++ AMP (Accelerated Massive Parallelism), its new system for heterogeneous parallel processing in C++. When Microsoft first announced C++ AMP in June last year, it said that it wanted to make the AMP specification open to all.

AMP has been developed by Microsoft with input from AMD and NVIDIA. Microsoft’s implementation allows AMP programs to use both the main CPU and Direct3D video cards (via the company’s DirectCompute API), though the specification should also permit OpenGL/OpenCL-based implementations.

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from Ars Technica

From Popular Science – New Technology, Science News, The Future Now: 10-Year-Old Accidentally Creates New Molecule in Science Class

Tetranitratoxycarbon Professor Robert Zoellner holds a model of tetranitratoxycarbon. He has a co-authorship on a paper about the new molecule–along with ten-year-old Clara Lazen. Humboldt State University
Little Clara’s tetranitratoxycarbon is brand new and explosiveClara Lazen is the discoverer of tetranitratoxycarbon, a molecule constructed of, obviously, oxygen, nitrogen, and carbon. It’s got some interesting possible properties, ranging from use as an explosive to energy storage. Lazen is listed as the co-author of a recent paper on the molecule. But that’s not what’s so interesting and inspiring about this story. What’s so unusual here is that Clara Lazen is a ten-year-old fifth-grader in Kansas City, MO.

Kenneth Boehr, Clara’s science teacher, handed out the usual ball-and-stick models used to visualize simple molecules to his fifth-grade class. But Clara put the carbon, nitrogen, and oxygen atoms together in a particular complex way and asked Boehr if she’d made a real molecule. Boehr, to his surprise, wasn’t sure. So he photographed the model and sent it over to a chemist friend at Humboldt State University who identified it as a wholly new but also wholly viable chemical.

The chemical has the same formula as one other in HSU’s database, but the atoms are arranged differently, so it qualifies as a unique molecule. It doesn’t exist in nature, so it’d have to be synthesized in a lab, which takes time and effort. So Boehr’s friend, Robert Zoellner, wrote a paper on it instead, to be published in Computational and Theoretical Chemistry. Listed as a co-author: Clara Lazen.

Boehr says the discovery and subsequent publication has incited a new interest in science and chemistry at his school–and Clara seems particularly pleased, saying she’s now much more interested in biology and medicine.

[The Mary Sue via Gizmodo]

from Popular Science – New Technology, Science News, The Future Now

From Popular Science – New Technology, Science News, The Future Now: Cool Plasma Torch Kills Germs on Raw Chicken

Plasma Versus Chicken Breast Dirks et al., Journal of Food Protection

We’ve seen the plasma beam toothbrush, where a blast of room-temperature plasma destroys plaque and bacteria in your mouth. Now researchers at Drexel University have applied the technology to raw chicken and found that the gentle blue blast of ionized matter effectively removes pathogens on the poultry’s surface.

When raw chicken breasts had a normal amount of pathogens (Salmonella enterica and Campylobacter jejuni were the culprits that were tested), the plasma almost completely eliminated them. The technology is still too expensive to fit into the highly streamlined production lines that bring skinless, boneless, sanitized poultry to your table, but — not least because it is equally effective on antibiotic-resistant strains of bacteria — the proof of concept is an intriguing one.

The researchers suggest that the treatment could significantly increase the shelf life of raw meat by removing microorganisms responsible for spoilage. They don’t mention, though, the first idea that popped into my mind: delicious chicken sashimi.

from Popular Science – New Technology, Science News, The Future Now