96146937
submission
tcd004 writes:
Is beef still 'what's for dinner?" Plant-based meat substitute startups say they could provide enough protein to feed the world using only 2% of the land on Earth, dramatically reducing the resources required to create beef products. And adopting plant-based burgers could help reduce heart disease, protect water resources, and stop deforestation. But Beef producers say no laboratory can beat a steer's ability to turn plant-based nutrition into tasty protein, and animals are the best source for natural fertilizer to grow crops. There's a coming war for your dinner plate. Who will prevail?
70215897
submission
tcd004 writes:
Sarah Marshall has completed roughly 20,000 academic surveys. Clay Hamilton has finished about 40,000. Marshall and Hamilton are part of a small but highly-active community of paid online study participants on Amazon's Mechanical Turk who generate data at break-neck speed to fuel modern scientific research. But can a person who's completed thousands of surveys still provide good data? Here's a look at the humans feeding science from inside the machine.
60550449
submission
tcd004 writes:
You've always suspected those trailer-type portable classrooms are no good, right? It turns out you’re right. Analysis of prefabricated classrooms in Washington shows the structures often don't allow for proper ventilation, leading to terrible air quality for kids. Students in temporary classrooms have higher rates of absenteeism than those in standard classrooms. And the energy-inneficient structures often become permanent, sucking on school energy bills for decades, and requiring more upkeep than permanent classrooms. What's needed are new designs for healthy, sustainable temporary classrooms.
59826725
submission
tcd004 writes:
Few sciences are more romantic than taxonomy. Imagine Darwin, perched over a nest of newly-discovered birds in the Galapagos, sketching away with a charcoal in his immortal journals. Yet Taxonomy is a dying science. DNA barcoding, which can identify species from tiny fragments of organic material, and other genetic sciences are pulling students away from the classical studies of anatomy and species classifications. As the biodiversity crisis wipes undiscovered species off the planet, so to go the scientists who count them.
43850457
submission
tcd004 writes:
Imagine this crazy scenario: A space vehicle we've sent to a distant planet to search for life touches down in an icy area. The heat from the spacecraft's internal power system warms the ice, and water forms below the landing gear of the craft. And on the landing gear is something found on every surface on planet Earth... bacteria. Lots of them. If those spore-forming bacteria found themselves in a moist environment with a temperature range they could tolerate, they might just make themselves at home and thrive and then, well... the extraterrestrial life that we'd been searching for might just turn out to be Earth life we introduced.
22656300
submission
tcd004 writes:
Russian and French teams are currently hard at work in French Guiana on the northern coast of South America, building the first Soyuz launch facility in the Western Hemisphere. Soyuz rockets normally carry 3,500 pound payloads into orbit, but from the French Guiana spaceport, the rocket will have an added benefit of being near the equator where the Earth's spin extremely fast. This extra boost allows it to deliver a 6,600 pound payload into orbit. The first launches are scheduled for October.
20820568
submission
tcd004 writes:
A report released today by the Pew Research Center's Project for Excellence in Journalism shows that the Drudge Report is a far more important driver of online news traffic than Facebook or Twitter. In fact, for the top 25 news websites, Twitter barely registers as a source of traffic. The report hits on several other interesting findings about news behavior.
18267186
submission
tcd004 writes:
If you added the Youtube Facebook app prior to 2009, you're given YouTube free access to nearly all the data in your profile (as well as many of your friends). But if you install the same app today, it gets very limited access. Older versions of Facebook apps, it turns out, still have "grandfathered" access to data that the social networking service has restricted for new apps. If you're protective of your privacy, it might be a good idea to delete and reinstall any older apps in your profile.
17134986
submission
tcd004 writes:
The PBS NewsHour reports: there is water on the moon ... along with a long list of other compounds, including, mercury, gold and silver. That's according to a more detailed analysis of the cold lunar soil near the moon's South Pole. The results were released as six papers by a large team of scientists in the journal, Science Thursday. The data comes from the October 2009 mission, when NASA slammed a booster rocket traveling nearly 6,000 miles per hour into the moon and blasted out a hole. Trailing close behind it was a second spacecraft, rigged with a spectrometer to study the lunar plume released by the blast. The mission is called LCROSS, for Lunar Crater Observer and Sensing Satellite.
16295682
submission
tcd004 writes:
Instead of using Detroit engineers or Silicon Valley bitheads, Virginia-based Edison2 relied on retired Formula 1 and Nascar engineers to build its entry for the X-prize. Relying on composite materials and titanium, the team assembled an ultra-lightweight car that provides all the comforts of a standard 4-passenger vehicle, but gets more than 100 mpg. The custom engineering goes all the way down to the car's lug nuts, which weigh less than 11 grams each. Amazingly, they expect a production version of the car should cost less than $20,000.
15291020
submission
tcd004 writes:
Defcon participant Chris Paget demonstrated his ability to capture RFID data from people hundreds of feet away for the PBS NewsHour. Paget went through the regular laundry list of security concerns over RFID: people can be tracked, their information accessed, their identities comprimised. Not so fast, says Mark Roberti of RFID Journal. Mark challenges Paget to point to a single instance where RFID was successfully used for nefarious purposes. The signals are too weak and the data is too obscure, according to Roberti. So who is right? Has RFID yet lead to a single instance of identity theft, illegal monitoring, or other security compromise?
15241806
submission
tcd004 writes:
In a weekend, programmer Austin Heap transformed from an apathetic MMO player, to a world class regime-slayer. When word for Iran's rigged election broke over Twitter, Heap decided to dedicate himself to building a better proxy system for people behind Iran's firewall. Heap's creation, Haystack, conceals someone’s real online destinations inside a stream of innocuous traffic. You may be browsing an opposition Web site, but to the censors it will appear you are visiting, say, weather.com. Heap tends to hide users in content that is popular in Tehran, sometimes the regime’s own government mouthpieces
11937032
submission
tcd004 writes:
What best motivates the workforce? More money? Fame? New studies reveal that beyond a certain threshold, large financial rewards can actually become a drag on performance in the workplace. Paul Soloman of the PBS NewsHour compares million-dollar wall street bonuses to the rewards earned by the labor force behind the open source community.
11814584
submission
tcd004 writes:
At a conference on digital media at the Vatican, Pope Benedict XVI attacked the idea of transparency in the internet age, warning that digital transparency exacerbates tensions between nations and within nations themselves. And increases the "dangers of ... intellectual and moral relativism," which can lead to "multiple forms of degradation and humiliation" of the essence of a person, and to the "pollution of the spirit." All in all, it seemed a pretty grim view of the wide open communication parameters being demanded by the Internet age.
