This is incorrect. The FAA issued _guidelines_ (AC 91-57) in 1981 suggesting that RC planes adhere to a 400 AGL ceiling. The AMA - the private RC pilot's association - has a 400 AGL ceiling within 3 miles of an airport, and requires VLOS and a spotter when flying first person view. Pilots, especially glider pilots, routinely exceed 400 feet, and one popular competition class (ALES) starts off with a climb to 200 meters.
Depending on the process used, the carbon fiber to epoxy ratio can be rather high. For a DIY-style wet layup, 50/50 carbon/epoxy is reasonably good. For a compression molded or pultruded element (this particular case is probably compression molded), 70/30 carbon/epoxy ratios are more likely. Also, since the Young's modulus of CF is way, way higher than for the filler, essentially all of the load is carried in the carbon.
Here's the CPI data: ftp://ftp.bls.gov/pub/special.requests/cpi/cpiai.txt Even if you accept that it's representative data, there has still been persistent inflation. Even if it's only 2-3 percent/year, it adds up. One dollar today is worth 79 cents in 2003.
I'm not sure about the video link, but standard RC range is 1 mile. I've flown ~ 1/2 mile away with no radio issues.
theodp writes "Combine smartphone auto correction and fat-fingered virtual keyboard typing, writes Rob Walker, and the results can be hilarious and even shocking. The website Damn You, Autocorrect collects the awesomely embarrassing text messages that you never meant to send. Now if you'll excuse me, I have to masturbate some chicken for bisexuals night!"
Stoobalou writes "WikiLeaks founder Julian Assange has been accused of 'treason' by a Florida man seeking damages for distress caused by the site's revelations about the US government. From the article: 'David Pitchford, a Florida trailer park resident, names Assange and WikiLeaks as defendants in a personal injury suit filed with the Florida Southern District Court in Miami. In the complaint filed on 6th January, Pitchford alleges that Assange's negligence has caused "hypertension," "depression" and "living in fear of being stricken by another heart attack and/or stroke" as a result of living "in fear of being on the brink of another nuclear [sic] WAR."' Just for good measure, it also alleges that Assange and WikiLeaks are guilty of 'terorism [sic], espionage and treason.'"
digitaldc writes with this excerpt from Gamasutra: "The Air Force Research Laboratory (AFRL) has connected 1,760 PlayStation 3 systems together to create what the organization is calling the fastest interactive computer in the entire Defense Department. The Condor Cluster, as the group of systems is known, also includes 168 separate graphical processing units and 84 coordinating servers in a parallel array capable of performing 500 trillion floating point operations per second (500 TFLOPS), according to AFRL Director of High Power Computing Mark Barnell."
eldavojohn writes "A lizard long served on the menu in the Mekong Delta has recently caught the attention of scientists when it was noted that all animals in the species appeared identical as well as female. The species appears to be a hybrid of two other species (like a mule or liger). But the curious thing is that this hybrid isn't sterile — it reproduces asexually. The species, known for some time in Vietnam, has now officially been named Leiolepis ngovantrii."
Actually, all the R&D done by grad students is paid for by you. The vast majority of our funding comes from the US Gov (DARPA, NSF, NIH, etc), a bit from private sources (Gates Foundation, etc), and a tiny, tiny amount from internal funding. Funding grants pay our salaries, purchase equipment, pay for lab space, etc. Pretty much the only time a professor will get money directly from the school is when they're starting out, in which case they'll typically get 200k - 1 million to get a lab started. Undergrad tuition pretty much goes to pay for non-research profs, and administration.
A Florida woman was sentenced to nine months in jail, followed by five years of probation, for starting an office fire so she could get out of work early. From the article: "Pasco sheriff's investigators said Michelle Perrino, 40, started a fire at Bayonet Point Oxygen on May 12, 2009. Perrino drew suspicion when she mentioned the fire's origin — a filing cabinet — during an employee meeting. Employees had not been told where the fire started." I hope she had the good sense to start the fire on Friday so she could have a long weekend.
thecarchik writes "New projects from German automakers Audi and BMW promise to ease congestion simply by looking at traffic signals and driving style, in an effort to smooth the flow of traffic. Through a test course in Munich, vehicles were able to post phenomenal fuel efficiency gains simply by adjusting the timing of traffic lights depending on traffic volume — to whatever speed provides a so-called 'green wave' of four or more synchronized signals."
An anonymous reader writes "It sounds like a cool — if somewhat pointless — super-powered insect: a fly that can smell light! Researchers added a light-sensitive protein to a fruit fly's olfactory neurons, which caused the neurons to fire when the fly was exposed to a certain wavelength of blue light. Adding the protein specifically to neurons that respond to good smells, like bananas, makes for a light-seeking fly."
Blizzard announced today that StarCraft II: Wings of Liberty, the first game in a series of three, will be released on July 27. The game will contain the Terran campaign (29 missions), the full multiplayer experience, and "several challenge-mode mini-games," with "focused goals designed to ease players into the basics of multiplayer strategies." It will launch alongside the revamped Battle.net, which we've previously discussed. Blizzard CEO Mike Morhaime said, "We've been looking forward to revisiting the StarCraft universe for many years, and we're excited that the time for that is almost here. Thanks to our beta testers, we're making great progress on the final stages of development, and we'll be ready to welcome players all over the world to StarCraft II and the new Battle.net in just a few months."
Hmmm. I read the linked article, and from the truly minimal amount of hard information, it suggested that: 1) They're using some SOI process 2) They're using a laser ablation/etch process to define the cell boundaries 3) Each cell then has to be glued & connected, perhaps on a flexible substrate. Brilliant! I mean, why bother using cheap, OTS silicon wafers, when you can use expensive SOI, slice it up into tiny fragments with a laser, and then throw cash at the packaging! Yes, I am an OE engineer.