We’ve just added a bunch of new content to the Make: Science Room. In “General,” we added Bob’s brief on how to set up and keep a proper lab notebook, in “Chemistry,” we added Section 12 on the fine art of studying reaction rates in chemical processes, called “chemical kinetics,” and in “Forensics,” we take […]
Two used units, anyway. You need to move quickly if you want the cheap one for $23.99:
Cracked casing. Has caused dog to grow third pair of legs. Still adorable. Good product.
Because after that one’s gone, the price jumps up to $2500:
Found this in some old abandoned village while on vacation. Older, Russian model (PU239)? Please inquire about shipping. Not responsible for damage due to radiation or explosions.
Or you could just visit the manufacturer’s website and buy it there.
And no, it’s not a joke, but you wouldn’t know it from reading the reviews on Amazon. The 168 reviews are, in fact, the best reason to check out the listing. Highlights include:
So glad I don’t have to buy this from Libyans in parking lots at the mall anymore.
I bought this to power a home-made submarine that I use to look for prehistoric-era life forms in land-locked lakes around my home town in Alaska. At first I wasn’t sure if this item would (or could) arrive via mail, but I was glad to see it showed up with no problems. Well, almost no problems.
Great Product, Poor Packaging
I purchased this product 4.47 Billion Years ago and when I opened it today, it was half empty.
I bought it for my cat
I bought this for my cat and put it with a flask containing poison, in a sealed box. Do you think he likes it ? I’ve not opened the box yet.
The Solheim Rapid Prototyping lab at the University of Washington was in the news last March for developing a new 3D printing process that uses ceramic powder as an inexpensive alternative to the pricier substrates that are currently the de facto standard for powder-bed processes. Well they’ve done it again, this time with 20 micron glass powder, which is formed into an object by layerwise application of a liquid binder. When the part is complete, it can be sintered in a kiln to produce a continuous glass part. The official UW online press release includes a telling quote from lab co-director Mark Ganter: “It became clear that if we could get a material into powder form at about 20 microns we could print just about anything.”
Alexis Belonio is an associate professor in agricultural engineering at the Central Philippine University of Iloilo City. In 2008 he received a Rolex Award for Enterprise for a rice-husk-burning stove he designed. Belonio’s stove is not complicated, either mechanically or conceptually: A columnar metal burner with the addition of a small intake fan at the base to tip the stoichiometry of combustion towards oxidation, giving a blue, clean, efficient flame that leaves little or no residue. Traditional rice husk burners, by contrast, do not have this forced-air feature and produce a yellow, dirty, inefficient flame that leaves tar behind. The upshot is more efficient use of rice husk biomass and greatly reduced pollution from the many rice-husk burners in use today.
Harvard’s George M. Whitesides is arguably the world’s most significant chemist. How arguably? Whitesides has the highest Hirsch index of any living chemist in the world. The Hirsch or h-index is a kind of weighted score based on a numerical analysis of a scientist’s published work which factors in both the number of papers and the number of citations those papers receive by other authors.
Back in October of 2008, Whitesides published a paper in the Royal Society of Chemistry’s journal Lab on a Chip that describes a technique for separating blood plasma for use in various immunoassays using a piece of plastic tubing taped to an eggbeater. The method can replace a $400 bench centrifuge for many purposes.
There’s almost nothing that makes me as happy as a little Lego entrepreneurship. Remember BrickArms? Well, now there’s ChromeBricks, which will custom electroplate Lego elements of your choice, in your choice of gold, chrome, or copper. [via The Brothers Brick]
Thermite pumpkin
