Gallery of GIFs Explains the Inner Workings of Machines

You gotta love the animated GIF. Sure it was responsible for the flashing and blinking of some the 1990s’ worst web home-pages, but how else would you explain the inner workings of an aircraft engine or a sewing machine, all in less than 100-kilobytes?

That’s exactly what this wonderful collection of moving diagrams does. The World of Technology blog has rounded up a selection including the radial engine above, which powers airplane propellors (and moves like a hula-hooping robot), to the ingenious mechanism inside a sewing machine, which you still won’t work out even after staring at it for many minutes.

My favorite, though, must be the Wankel rotary engine, and not just for my school-boyish love of its name. The Wankel is pretty much a single eccentric cam spinning inside a chamber, doing everything a normal piston-pumping engine can do, but with a simplicity and elegance that is truly astonishing. Go take a look.

Complicated Mechanisms Explained in simple animations [World of Technology]

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Social Bikes: GPS-Tracked, Phone-Controlled Rides in NYC

The Social Bicycle System (SoBi) turns bike-sharing on its head, and is set to test in New York City this fall. Instead of big, central base-stations from which the bikes must be taken and returned, the SoBi puts all the tech on the bike itself. Here’s how it works:

The service consists of three parts. First, the SoBi unit which clamps to the bike and contains a GPS unit, a cellular device and a honking-great lock. Second is the SoBi server, and third is you or, more specifically, your cellphone.

Once registered, you can use your phone to track down a bike on a map. This may be locked to a regular bike-rack or at a designated base-station (yup, there are base-stations, but you don’t have to use them). Once you find a bike, you unlock it with your phone and ride away. If you don’t have a smart enough phone, you can just punch an unlock code into the unit or unlock it via SMS.

Because of the GPS and cellular connectivity, the server can authorize you and also always know where the bikes are. It will also allow you to track yourself, totting up the calories you burn as you avoid the legendary NYC pot-holes.

The bikes have some extras. If your bike is broken, hit the “repair” button and the bike will be flagged for pick-up. And what if you pop into the liquor store and come out to find another SoBi user has already taken off on “your” bike? There’s a “hold” button. which gives you ten minutes after locking the bike before it goes live again.

SoBi founder Ryan Rzepecki says that the startup costs are a fraction of those using traditional infrastructure-based systems, like the Velib in Paris of Bicing in Barcelona. Rzepecki says that these cost around $3,000 to $4,000 per bike to set up. SoBi costs less than $1,000 per bike.

The testing of the lock is the next part of the scheme. And we probably don’t have to point out that, being in New York, the lock is probably the most important part of the whole bike.

SoBi [Social Bicycles via Crunch Gear]

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Social Bicycles bike sharing system powered by iPhone app to hit NYC this fall

Social Bicycles is a bike sharing system with a twist. Using an iPhone app, the system allows users to drop off, locate, and borrow a bike nearly anywhere. The bikes are equipped with a GPS device which is locked to one of the wheels, and when the bike is locked, it’s locatable using the app, so that someone can borrow it; when it’s in use and unlocked, it doesn’t appear in the app. The real upside to Social Bicycles is that the regular infrastructure required for bike lending systems — such as docking stations in a lot of convenient locations — are unnecessary with this system, which can get by with regular old bike racks, making it a much cheaper, fly-by-night option. It’s coming to New York City in very limited beta this fall, and we expect it to outperform Segs in the City in no time. Video is below.

Continue reading Social Bicycles bike sharing system powered by iPhone app to hit NYC this fall

Social Bicycles bike sharing system powered by iPhone app to hit NYC this fall originally appeared on Engadget on Wed, 11 Aug 2010 21:41:00 EDT. Please see our terms for use of feeds.

Permalink CrunchGear  |  sourceSocial Bicylcles  | Email this | Comments

Video: Inside the $7 Billion Bay Bridge Construction Project

Take a look on, inside and underneath the world’s largest self-anchored suspension bridge in this exclusive Wired.com video.

The Bay Bridge is nearing the end of a $7-billion-plus retrofit and reconstruction project. A $5.4 billion chunk of that project involves building the world’s largest self-anchored suspension bridge, a type of suspension bridge that uses a single cable, anchored to the span itself instead of to the ground on either end. When complete, this bridge will have a 525-foot tower and will be over 2,000 feet long.

To make the suspension bridge, builders must first create a “falsework” bridge: a giant, temporary structure that will hold up the road bed until the suspension tower and cables are in place. Then they place segments of the tower (shipped in from China), stack them up and bolt them together. Then they’ll place the road deck segments and lace it all together with cables. Once it’s under tension, builders will remove the falsework and the bridge will stand on its on.

They must do all this without interrupting the flow of more than 250,000 vehicles per day. They’ve got to anchor the bridge in deep layers of soft, squishy bay mud, without the benefit of bedrock, while making the bridge strong enough to withstand the most powerful earthquake expected in the next 1,500 years. And they’ve got to do it all without destroying the habitats for fish, birds, or other wildlife which still call the San Francisco Bay home.

It all adds up to an impressive high-tech engineering project. Take a look in this video, produced by Michael Lennon with sound by Fernando Cardoso.

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Trek’s Broadside: Made for Mad Max

This bad-ass, nut-busting ride comes from the fevered imaginations of the designers at Trek bikes. Called The Broadsider, the bike was made to a fictional brief featuring a post-apocalyptic story “of the legendary cliff racer Max Malco who lost his life saving a young boy from his racing rivals.”

Sound familiar? That’s because it rips-off the story of Mad Max, right down to the first name of its main character. And if you’re going to steal ideas from a movie to make a bike, it probably should be the still-awesome Mad Max.

The Broadsider is a concept project, but a look at the pictures gives an idea of the specs. The first “spec” on the list should be weight. This thing surely comes in at well over 60-pounds. Next are disk-brakes, likely needed to stop something this big if you ever manage to pedal it to the top of a hill and haul it over the crest.

Low gears are assumedly a given, but its the styling that is the point here, from the bar-grips that look like (and might just be) old inner-tubes, through the saddle which could have been stitched together by Frankenstein, to that top-tube, which I pessimistically described as nut-busting up there in the first paragraph.

This bike will probably never make it out of the near-future back to the boring present day, but if you are visiting the Trek World show this week, you may be lucky enough to see it.

UPDATE: Trek’s Senior Industrial Designer, Michael Hammond, mailed to say that the Broadside actually weighs “around 45lbs…nonetheless it’s still a bugger to pedal up hill.” He also points out, in case anyone actually needed convincing, that “Max is just a bad-ass post-apocalyptic name!” We totally agree.

Trek’s New Broadsider, What Mad Max Will Ride When he Runs Outta Gas [Bike Rumor]

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San Francisco Parking Meters Adjust Prices Depending on Demand

As a cyclist, I see parking meters as nothing more than a place to chain my bike. For motorists, they are hungry monsters that need feeding regularly, if you can even find a free one to begin with. San Francisco’s new meters are set to change that, adjusting the prices automatically depending on demand.

Part of the two-year SFpark experiment, the new meters will detect how in-demand are the spaces they govern. Based on this info, the prices will be adjusted up and down, from 25-cents up to $6 per hour. The plan is to price parking at a rate that keeps around 20% of spaces free. This will mean that you can always find a spot, and will in turn mean less people are driving round and round the block looking for a space.

The prices won’t fluctuate wildly during the course of a day. The changes will be slow and self-leveling: the prices will change once a month or less, and then only by 50-cents at a time. You’ll be spared running into a store to make change, too: the new meters will also accept credit-cards and soon, an SFMTA card.

It seems that everyone will win here, although I’m a little worried about one of the new machines being introduced. Along with the traditional meters on sticks, there is a new meter which sits at the side of the road, governing all the spots on a street. It’s more efficient for cars, but where will I lock my bike?

Demand-Responsive Pricing [SFpark via Switched]

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Apple Files Patent for a Smart Bike

If we saw a patent for an iPod Touch with a camcorder, we wouldn’t bat an eyelash. A Mac with a touchscreen? Unremarkable. But we did a double take when we read that Apple filed a patent for a smart bike.

The company, known more for its must-have consumer gadgets than any niche products, has imagined a smart bicycle system that would let users communicate electronically with other cyclists, sharing such data as speed, distance, time, altitude, elevation, incline, decline, heart rate, power, derailleur setting, cadence, wind speed, path completed, expected future path, heart rate, power, and pace.

If that sounds totally un-Apple, it’s worth noting that this system would require an iPhone or iPod Touch, so it’s not a complete departure from the kinds of products Apple usually makes. In fact, it’s not unlike Nike + iPod, which combines Nike sneakers and an app installed on iPod Nanos and Touches to monitor runners’ distance, time, heart rate, and other key stats.

To bicyclists, this idea might not seem novel; they can buy attachable computers now. But they also have to pretty serious about the sport: high-end models can cost upwards of $200. Even the LiveRider iPhone bike computer kit costs $100.

However, it’s unclear how tricked-out a smart bike would be, much less how much it might cost. Part of the mystery is that any number of sensors could be attached to the bike itself, to monitor how it’s moving, and in what direction. For instance, it could come loaded with GPS, an accelerometer, or a magnetic sensor, to name just three types. The patent does indicate, though, that regardless of the combination of sensors, the general concept of a smart bike would apply to any kind of bicycle, whether it be a mountain bike or BMX.

Then there’s the question of display. The patent indicates that an iPhone or iPod Touch, coupled with an armband, is possible, but so is a display (either fixed or removable) that’s attached to the handlebars. (We think a cradle for the iPhone sounds like the most elegant solution, allowing users to easily view data without having to spring for an additional piece of hardware.)

In terms of how intrusive such a system could potentially be, the patent suggests that users could also set a threshold (say, for speed) after which the system alerts the bicyclist to changes in their stats. It might even be possible for users to use voice commands to communicate with the app, which we’d prefer too if we were riding on a fast-moving bike.

We’re still stumped as to how a smart bike, applicable to far fewer customers than, say, an iPad, fits into Apple’s broader strategy. But if this is going to be the bicyclists’ version of Nike + iPod, we sure are intrigued.

Photo Credit: Patently Apple


Felt Track Bike is Unashamedly Retro

This new fixed-gear track bike from Felt gets a mention here based solely on its good looks. The TK4130 is a retro-styled, steel-framed bike with some lovely features and one very weird design decision.

We’ll get those horrible wheels out of the way first. Just take a look: they’re faux-wood, not real wood, and pretty much any kind of rim would look better. What were you thinking, Felt?

After that, things look up. The chainring, for example, is a skip-tooth design, with only half the teeth of regular ring of the same size. The pedals have toe-clips and straps instead of the usual modern-day clipless fixings and the gears and brakes are… just kidding. This is a track bike. There are no brakes or gears. There is a seat, though, and it is a gorgeous, leather-hammock Brooks-alike.

But who are we kidding here? This bike won’t ever make it near a velodrome. Real racers use much higher tech bikes than this. The TK4130 will be used to cruise from hipster bar to hipster bar, and then on home as the owner lurches through busy streets, brakeless and drunk until they finally come to a stop, find their feet are stuck in those straps and topple over to fall sound asleep, still on the bike and still in the street. $800, not yet listed on the Felt site.

Felt TK4130 [Urban Velo]

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Volkswagen Beetle converted to run on methane headed for the UK streets

Meet the Bio-Bug, a custom modded Volkswagen Beetle which has been converted to run on biogas — fuel created from human waste. The process of conversion isn’t brand new, but this will be the first automobile fully converted to run on biogas in the United Kingdom without any loss of performance. In fact, the car is so reliable that its makers believe it can “blow away” electric vehicles, and that consumers won’t even notice the difference. The Bio-Bug is a regular old 2 liter VW convertible modified to operate on both gasoline and compressed methane gas: once the methane runs out, the car reverts back to running on gasoline. The cars run on so little methane that just one regular sized sewage plant could run a car (or cars) over 95,000,000 miles per year. Developed by GENeco, a sustainable energy company in the UK, the Bio-Bug is going into a trial period, and the company plans on converting its entire fleet if successful.

Volkswagen Beetle converted to run on methane headed for the UK streets originally appeared on Engadget on Thu, 05 Aug 2010 13:40:00 EDT. Please see our terms for use of feeds.

Permalink Inhabitat  |  sourceDaily Mail  | Email this | Comments

China’s maglev trains to hit 1,000km/h in three years, Doc Brown to finally get 1985 squared away

Look out Japan — your neighbor to the west might just steal your thunder. Years after the Land of the Rising Sun proudly boasted plans to create a maglev train that could soar along at 500km/h, China is now claiming that they’ll have similar ones ready in just three years. Oh, but they’ll travel at twice the aforesaid speed. According to the laboratory at Southwest Jiaotong University, a prototype is currently being worked on that’ll average 500km/h to 600km/h, with a far smaller train to hit upwards of 1,000km/h in “two or three years.” The trick? Tossing the maglev train inside of a vacuum tube, enabling greater velocity due to decreased friction. If you’re scoffing at the mere thought of how much such a setup would cost, you’re probably not alone — it’s bruited that the tunnel would cost “10 to 20 million yuan ($2.95 million) more than the current high speed railway for each kilometer.” Pony up, taxpayers!

China’s maglev trains to hit 1,000km/h in three years, Doc Brown to finally get 1985 squared away originally appeared on Engadget on Wed, 04 Aug 2010 23:22:00 EDT. Please see our terms for use of feeds.

Permalink Engadget Spanish  |  sourceEastday, China Daily  | Email this | Comments