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Tuesday, March 1, 2011
Plan the Blog; Blog the Plan
This guest post is by Tricia Lawrence of Realbrilliant.com. Oh, it?s a love/hate relationship with New Year?s Resolutions, isn?t it? If you?re feeling a bit dismayed at your lack of resolution to blog better in 2011, you?re not alone. But I?m here to help. How can you get that resolution back on track? 1. Revisit [...]
Which Blogs Should You Be Watching?
This guest post is by Kevin Sanders, of strongandfit.net. What if I said you’re only as good as the blogs you follow? Maybe that?s not completely true for everyone, but I?m willing to bet all the A-listers have several blogs they check out every day. I think there are basically two types of blogs you [...]
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Which Blogs Should You Be Watching?
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WITN: New York State of the Tech Industry [TCTV]
This week, Sarah is in New York doing various book-related things - but WITN is all about life outside the valley so she dialled in via Skype to give us an update in what's happening on the East coast. Spoiler alert: NY is still no Silicon Valley, but it's increasingly proving that it doesn't have to be. We also discussed whether New York's status as a multi-industry town is a pro or a con when it comes to technology startups. Video below. (Next week Paul will be in LA, a trip which he vehemently denies is about finding a new American girlfriend/wife. Instead, he claims he'll be on the look out for interesting start-ups to rival Machinima and - uh - MySpace. If you know of a company that fits the bill, let him know.)
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Senator Schumer Says Websites Should Default To HTTPS
There are plenty of websites where it absolutely makes sense for the default to be https, rather than http as the protocol (if you don't know -- and you should -- https encrypts the traffic, while http does not). Most banks and such already use https, but plenty of sites that don't involve financial institutions do not. Even sites like Google's Gmail only recently switched over to defaulting to https. Still, it's a bit of a surprise to see Senator Chuck Schumer announcing that major websites should switch to https, and it makes me wonder if he's preparing legislation on that. I'm not so sure that we want a law mandating https.
Separately, he seems to indicate that the lack of encryption with http is a "security flaw" that only really got attention in 2007. That's not quite true. I mean it's been well known that http isn't encrypted for much, much longer than that. And it's not so much a "flaw" as the basic way that http was designed. And, of course, whether or not websites use https, you can protect yourself with VPN encryption software or services, but it doesn't seem like Schumer wants to mandate that...
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Separately, he seems to indicate that the lack of encryption with http is a "security flaw" that only really got attention in 2007. That's not quite true. I mean it's been well known that http isn't encrypted for much, much longer than that. And it's not so much a "flaw" as the basic way that http was designed. And, of course, whether or not websites use https, you can protect yourself with VPN encryption software or services, but it doesn't seem like Schumer wants to mandate that...
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Creator Of Angry Birds? Physics Engine Calls Out Rovio For Not Giving Him Credit
Aaaawkwaaard! I'm not at this week's Game Developer Conference in San Francisco for various reasons (the main one being that I've been covering events non-stop for nearly two months and my body is falling apart), but we're keeping a pretty close eye on things just in case. We're hearing that things just got a little dramatic in the "ANGRY BIRDS - An Entertainment Franchise in the Making" panel headed by Rovio's "Might Eagle" (read: head honcho) Peter Vesterbacka.
Source: http://feedproxy.google.com/~r/Techcrunch/~3/JCJ4vdf6IXc/
NASA Is Putting This Can In A Million-Pound Crusher
Not just for awesomeness's sake: to help design stronger, lighter rockets
Cylinder buckling is governed by imperfections in a structure and uncertainties in the loading of weight, and mathematical models can predict this behavior. But the current models, known as shell buckling knockdown factors, date to the Apollo era, well before the advent of modern composite materials and advanced computer modeling. 
To test future rocket designs, NASA is employing an age-old bar trick: Slowly and deliberately apply pressure to an aluminum can until it crumples. No foreheads will be involved, however.
In late March, engineers will use a million pounds of force to crush a 27.5-foot diameter, 20-foot-tall canister made of aluminum and lithium, hoping to learn more about shell buckling so they can design sturdier rocket skins.
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Technology, Rebecca Boyle, Apollo, breaks, crush, heavy lift rockets, marshall space flight center, nasa, pressure sensors, rockets, smash, thin skinNew materials are sturdier and lighter than the stuff used in the 1960s, but there have not been new tests to come up with new equations that can predict how a material will deform and buckle under the weight of a payload or lots of fuel. That's the goal of the upcoming can-crushing test at NASA's Marshall Space Flight Center in Alabama.
NASA has already performed small-scale tests using 8-foot-diameter cylinders, but the big can will run the gauntlet: It will be sandwiched between two massive loading rings that will press down with almost one million pounds of force, causing it to buckle.
Engineers have placed hundreds of sensors on the can, which has also been outfitted with a polka-dot pattern that will allow engineers to precisely measure its deformations. They will use a technique called photogrammetry, which determines geometric shapes from images, according to a NASA news release.
Fuel tanks and other spacecraft materials are designed to be as thin as possible to save as much weight as possible, but spindly materials could buckle more easily if they're topped with a heavy space capsule or other payload. Engineers hope the can-crushing tests will prove the strength of thin materials, enabling rocket builders to design lightweight materials for future heavy-lift launch vehicles.
Mega Can: The 27.5-foot diameter, 20-foot-tall test can was moved into the test lab at Marshall Space Flight Center in preparation for a March smackdown. NASA
[NASA]
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