John Mahoney

What Can I Do With Twitter?

Our experts geek out on your toughest questions

To the unconverted, Twitter is just a way to deliver mundane details of your life to many friends at once. The free service(
Twitter.com
) is a social-networking site in which you post updates, or “tweets,” to a page where friends who “follow” you can view them. But since it lets users post and receive tweets via text messages, it’s actually a powerful platform for getting things done on the go.

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The iPhone 3G is Official

No surprises for rumor watchers: 3G, GPS, glossy plastic back, lower price

iPhone 3G:  Apple

It's official. The iPhone has gotten a birthday facelift, and the juicy details are all in line with the rumors we've been hearing all month—3G, GPS, an integrated app store, and a glossy new plastic back in black or old-school Apple white. Perhaps most surprising is a substantial price drop—down to $199 for the 8GB version and $299 for the 16GB (price drops were hinted at, but no amounts). Here's what else Apple campers will be dreaming about when they pitch their tents prior to the July 11 launch date.

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New iPhone Imminent

At Apple's WWDC conference in San Francisco, Steve Jobs is expected to unveil iPhone 2.0

We Know What This Means: New products afoot!
At this very moment, Steve Jobs is on stage in San Francisco where he is expected to unveil the next version of the iPhone. High-speed 3G data connectivity, on-board GPS and a fully developed application store are all likely to be in the cards.

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The Tech Behind the Phoenix Mars Lander's Onboard Cameras

A 3-D stereoscopic imager and a robotic arm camera with an LED flash make up Phoenix's Red Planet gear bag

Say Cheese, Martians!: The Phoenix Lander's main camera can capture 3-D stereoscopic images.  NASA/JPL/University of Arizona

For the past two weeks, NASA's Phoenix Mars Lander has been broadcasting a wealth of incredible images from its landing site in the Martian arctic. I've been refreshing the mission's raw photo stream obsessively—no little green men yet, just gorgeous panoramas and detailed closeups of the most foreign of all foreign lands. Being a bit of a camera geek, I was quite curious as to what kind of hardware was behind the action, and naturally, Phoenix has some pretty sweet gear on board to make it all possible.

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Anatomy of a Hack

After video site Revision3 was attacked and brought down over the weekend, a little digging revealed a surprising perpetrator

Over the long weekend, the servers of the Internet TV site Revision3.com were brought down by what is called a "denial-of-service" attack (DoS)—one of the most common methods used to disrupt the operations of a Web site or server by flooding it with an overload of simultaneous connections. These attacks are not uncommon, but in a fascinating blog post written by Revision3's CEO Jim Louderback today, he reveals that the source of this particular attack was not a pimply basement hacker with a grudge, but a major anti-piracy organization called MediaDefender whose clients include all the major entertainment companies and the RIAA. The hitch? Revision3 is a perfectly legitimate business that does not deal in pirated content.

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Mars Reconnaissance Orbiter Captures Images of Phoenix Lander's Descent

In a first for NASA, the MRO's high-resolution camera was trained on little brother Phoenix's successful landing this weekend

Phoenix Lands: The Mars Reconnaissance Orbiter captured this stunning image of the Phoenix Lander making its descent.  NASA/JPL/University of Arizona
In the first ever instance of a spacecraft photographing the landing of another craft on Mars, the Mars Reconnaissance Orbiter captured this incredible image of NASA's Phoenix Lander making its descent on Sunday. Phoenix landed successfully and has already begun transmitting images from its landing zone in Mars's northern polar region, where it will be conducting meteorological and geological surveys over the course of its three-month mission.

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PopSci 5-Minute Project: Underwater Camera

Lend your camera some protection for those, er, slippery situations

When you're vacationing on a beach, nothing beats an underwater camera; but watertight cases are pricey and disposables have lousy quality. Lucky for you, the editors of PopSci have come up with an easy workaround using something there's probably already plenty of in your suitcase (hint: not socks). That's right, thanks to the magic of unlubricated condoms, you too can transform your point-and-shoot into an waterproof wonder. The set-up is easy enough, but as John and Doug demonstrate, it really does help to have a partner lend a hand.

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The .su Boom

Tucked away in one of the Web's dark corners, the Soviet Union continues to thrive as an internationally recognized entity.

The Soviet Union has been history for going on 17 years now, but there is one place where the former superpower continues to live on, even with the semi-endorsement of a major international standards agency. That place is of course the Internet, where for 500 rubles (around $25) per year, it is still possible to own a little chunk of Soviet real estate by parking your website at an official ".su" domain name.

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Woe is the Web: April Fools' Day on the Internet

We run down all the hits and misses from this (in)glorious day

Woe is the Internet on April 1. For it is on this day where sites large and small rack their brains for the perfect Fools' Day prank, briefly vindicating those that continue to hold the belief that the Web serves as nothing more than a sloppy ocean of untruths and nonsense.

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Why Do People Post Gadget "Unboxing" Photos on the Web?

An Apple designer sheds some light on one of the Internet's peculiar little mysteries

In today's gadget blogosphere, there are few if any new products that aren't upon release subjected to an immediate "unboxing"--a thorough and, some may say, pathologically obsessive series of photographs documenting exactly what is implied by the name: taking a shiny new object out of its multiple layers of packaging, step by exhaustive step.

For those leaning more toward the "pathologically obsessive" reasoning here (there are in fact entire blogs dedicated to the practice), the question is: Why does this happen?

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Battle of the Ultra-Mobile Linux Laptops: Cloudbook vs. EeePC vs. My Old Thinkpad

How much portable Linux goodness can you get for $400?

When Asus unveiled their ultraportable, ultra-cute EeePC in October of last year, they may not have anticipated launching a whole new product category, but judging by the overwhelmingly favorable reaction of users online and strong sales numbers, that's exactly what they've done. The slimmed-down, no-nonsense, Linux-powered ultraportable category that the Eee currently presides over, and that Everex's recently released Cloudbook hopes to capitalize on, is just one instance of a greater tech trend we're seeing across the board: an emphasis on shrinking form-factors and streamlined usage. In an industry that has always been about more power, more size, more capability—more everything—this is notable.

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Disabled U.S. Satellite Reportedly Shot Down

Full destruction of the toxic hydrazine fuel tank remains unconfirmed. Videos of impact and launch inside

Last night at approximately 10:26 EST, after a long buildup of preparations, the Navy took the controversial step of shooting down a dead U.S. reconnaissance satellite from its low-Earth orbit. The satellite, which is about the size of a school bus, was destroyed to prevent a potentially hazardous impact with Earth, the military has said. It was moving faster than 17,000 mph at an altitude of 133 nautical miles above the Pacific when a modified SM-3 anti-ballistic missile launched from the USS Lake Erie, a Ticonderoga-class AEGIS missile cruiser, reportedly made impact.

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Livescribe Hands-On: Translating Written Text on the Fly

See video of the Babel pen in action


We first saw the Livescribe Pulse "smartpen" in action at the DEMO conference last month, but today CEO Jim Marggraff stopped by to give us a closer look.

When you use the Pulse to write on paper printed with a special microdot pattern, it recognizes its exact relative location on the page and captures a digital file of your pen strokes (complete with full character and word recognition) along with audio. The pen can also then interact with written words on the page in many interesting ways, including live audio translations into multiple languages of any word you tap.

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More Bad News For Your HD-DVD Player

Best Buy and Netflix become the two latest companies to throw HD-DVD under the bus in favor of Blu-ray. How should HD-DVD compensate consumers?

As we reported from CES, HD-DVD's death knell as a viable high-definition disc format began to ring loudly when Warner Bros., one of the format's largest major supporters, announced that they would move exclusively to Blu-ray in early 2008. Today, Netflix and Best Buy also declared HD-DVD dead to them—the former will completely phase them out of its rental business, and the latter will now exclusively recommend Blu-ray players to its customers.

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Sheldon Brown, the Web's Foremost DIY Bike Guru, Passes Away

Maintained the most prolific online bike encyclopedia since 1997

If you've tinkered with bikes in the last decade or so, chances are that sheldonbrown.com has proven incredibly useful to you—it's practically the Bible of bicycle mechanics, repair, maintenance and appreciation on the Web. I was saddened to read today that its keeper and one of the online cycling world's most charismatic presences passed away on Sunday of a heart attack.

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