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Biotech

Human Sperm Produced In the Laboratory 368

duh P3rf3ss3r writes "The BBC is carrying a report from a team of researchers at Newcastle University who claim to have developed a the first 'artificial' human sperm from stem cells. The research, reported in the journal Stem Cells and Development, involved selecting meristematic germ cells from a human embryonic stem cell culture and inducing meiosis, thus producing a haploid gamete. The authors claim that the resulting sperm are fully formed, mature, human sperm cells but the announcement has been greeted with mixed reaction from colleagues who claim the procedure is ethically questionable and that the gametes produced are of inferior levels of maturation."

Comment SSN is an IDENTIFIER, not AUTHENTICATOR (Score 2, Interesting) 268

Anybody or organization using an SSN as both an identifier and a form of authentication is stupid, irresponsible and should be held accountable 100% for breach of whatever resource they control. The problem is in the "shared secret" type use of a damn 9-digit number, with a few of the digits already known based on state of birth.

Want a list of ssn's for every state? Here's all of them. Have fun.

-Michael

Comment Lithium, a limited natural resource? (Score 2, Interesting) 281

It seems like this is the holy grail for electric vehicles, and we can finally stop burning dinosaur juice in our little bitty engines and realize the economies of scale of burning dinosaur farts in really big and efficient prime movers. This is all well and good, but how plentiful is lithium, and can it be recycled easily (I suspect yes)? -Michael

Comment Another solution. (Score 1) 225

http://maps.google.com/?ie=UTF8&ll=27.605462,-97.306359&spn=0.013139,0.021544&t=h&z=16 Suck in ocean water from one area, blow it out in another. This plant sucks water from the Laguna Madre (the body of water between the Texas coast and Padre Island) then spills the water into the Oso Bay, which is in turn connected to the Corpus Christi bay. This plant is a natural-gas fired plant, but evidently had coal in mind with the docks...cooling water and fuel via the same route.
Power

A New Way To Produce Hydrogen 204

Iddo Genuth writes "Scientists at Pennsylvania State University and Virginia Commonwealth University are producing hydrogen by exposing clusters of aluminum atoms to water. Rather than relying on the electronic properties of the aluminum, this new process depends on the geometric distribution of atoms within the clusters. It requires the presence of 'Lewis acids' and 'Lewis bases' in those atoms (water can act as either). Unlike most hydrogen production processes, this method can be used at room temperature and doesn't require the application of heat or electricity to work. The researchers experimented with a variety of different aluminum cluster patterns, discovering three that result in hydrogen production."

Comment Goes to far (Score 2, Insightful) 370

Copyright does not give the property holder the right to tell users what color/brand glasses they are allowed to wear when reading a particular title and this is really no different. Amazon/Kindle should stick to their guns and let the end user decide to turn on the TTS engine or not. Besides, most people can read a lot faster than even the fastest discernible speech.

Comment Re:Blind Them!!! (Score 1) 311

Not when the yellow period is shortened to increase the ticket yields, which I've not yet seen myself in my location, but have heard about. I'm not one to advocate running red lights, but if going up against intentionally shortened yellow lights, I say countermeasures are appropriate and justified. If a locale wants to play dirt, this'll shield their dirt.

Comment Blind Them!!! (Score 1) 311

Here's a neat idea. I really want to do the same with my license plate for the stupid redlight cameras in my city, but was thinking a few strong camera strobes with an IR filter set up as a slave flash would work better.

http://www.hacknmod.com/hack/blind-cameras-with-an-infrared-led-hat/

This IR hat hack is cool, but needs to be modified to regulate the current through the LEDs or they'll burn out quickly.

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