Algunos inventos.../1h por arena, tierra y grava..

bici en venta


Vendo TREK 4900 DISC 2011 como nueva, unas 5 salidas por pista. Es una talla 13 y tiene todos los componentes originales. La vendo por poco uso. PRECIO 490€. La bici está en Madrid. NO INTERCAMBIO. Chasis: Cuadro:ALPHA BLACK ALUMINIO Horquilla:SR SUNTOUR XCR-RL Dirección: 1\“1/8 THEADLESS SEMI Transmisión y frenos: Mandos:SHIMANO M590 9 SPEED Desviador:SHIMANO DEORE Cambio: SHIMANO DEORE SHADOW Frenos:SHIMANO M445 Manetas Freno: SHIMANO M445 HYDRAULIC Pedales: WELGO ALLOY Bielas: SHIMANO M521 Ruedas: Tamaño de rueda: 26 \” Cubiertas: BONTRAGER XR2 Llantas: BONTRAGER RANGER DISC Bujes: SHIMANO M435 Componentes: Potencia: BONTRAGER SSR Manillar:BONTRAGER SSR
Telèfono 616995922 està en Madrid

http://www.segundamanomtb.com/index.php?ct=aa1&md=details&id=2564&lrgphp=1&lnph=1

Bicicleta Merida Triatlon TT 2.800€




Vendo Merida Warp Time carbon TT 2011, talla L totalmente de serie montada con Sram Red y ruedas S60-S80. Tiene muy poco uso, cubiertas nuevas y fue comprada en Febrero de 2012. Su precio nuevo rondaba los 6000€ y la vendo por no usar.Està en Antequera




http://www.segundamano.es/malaga/bicicleta-merida-triatlon-tt/a48960805/


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Kinetic Rock and Roll Trainer

This video illustrates the amazing similarities between riding your bicycle outdoors and riding it indoors on a Kinetic Rock and Roll Trainer. For more information on the trainer go to the Kinetic website:

http://www.kurtkinetic.com

The video was produced by Ben Potter of Cana Video Productions

http://www.canavp.com
. You can read more about the video production on their blog at:

http://canavp.blogspot.com/

. The rider in the video is Scott Peterson (also the inventor of the Rock and Roll trainer!).

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DJI Introduces the Phantom 2 Vision
This is the Phantom 2 Vision - Your Flying Camera.

Experience a new horizon of possibilities laid before you as you rise above the clouds. Capture the world around you and share these moments like never before.

With a flight time of 25 minutes along with a camera that shoots full HD 1080p30/60i video and 14 megapixel stills, this is the ultimate ready-to-fly Photography/Videography multi-rotor. With the added benefit of FPV (First Person View) transmitted via a smart phone, you can frame your shot because you can see exactly what the camera is seeing. From the VISION App, you have full camera control. After transferring the content from the SD card, share to your favorite social media sites. For more information, please visit:

http://www.dji.com/product/phantom-2-vision/

Follow us on facebook:
http://www.facebook.com/iflydji

http://www.gizmag.com/dji-phantom-2-vision-quadcopter/29621/

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Pro-Line V3 Dual Sport skateboard converts for on- and off-road use



http://www.gizmag.com/altered-v3-ds-off-road-on-road-skateboard/29602/

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Transport bicycle packs a storage compartment in the front wheel







Transport bicycle packs a storage compartment in the front wheel

By Jonathan Fincher October 31, 2013
More and more city dwellers are taking to the streets on bicycles these days, but many of them run into the problem of how to carry things while riding. Most people will wear a backpack or attach saddle bags to their ride, but wouldn't it be easier if a bicycle had a built-in trunk instead? That's what three industrial design students wanted to find out when they made the Transport, a bicycle that replaces the spokes in the front wheel with a handy storage compartment.

The Transport's front wheel is fitted with an open compartment made from lightweight PET-G...The Transport's front wheel holding a backpackThe hubless design keeps the center area stationary, so the tire can turn without spinning...The back wheel has a standard gear systemView all
David Hotard, Matthew Campbell and Edwin Collier developed the Transport for a studio course in bike design at Georgia Tech, which was sponsored by bicycle component maker SRAM. The group's goal was to produce a new take on the common bicycle that would appeal explicitly to urban commuters, with the inclusion of a trunk like you'd find in most other vehicles.

The hubless front wheel of the Transport consists of a large, round frame with a standard bicycle rim and six bearing fitted over it. As the bike moves, the wheel's frame stays in place while the tire rotates around it on the bearings, essentially using the frame as an over-sized axle and leaving the center of the wheel empty. Meanwhile, the back wheel has a standard gear system that provides motion when the cyclist pedals.

Where most hubless wheels tend to leave the center space open, though, the Transport's front wheel is fitted with an open compartment made from lightweight PET-G plastic that's large enough to hold most backpacks. The hubless design also keeps the center area stationary, so the tire can turn without spinning the trunk's contents around like a washing machine.

The hubless design keeps the center area stationary, so the tire can turn without spinning...
Unfortunately, while it may look nice, the current prototype isn't actually rideable. Since they didn't have much of a budget for their project, the designers were forced to build the bike mainly from plywood and glue, with only a handful of steel supports in particularly breakable areas. The most recent model is mainly for proof-of-concept purposes, though the group has stated plans to make one out of stronger materials in the future.

It's hard to imagine that a few books or a laptop sitting inside a wheel wouldn't affect the bike's handling, but the designers say they tested a regular bike with additional weight on the front and found it didn't hinder its performance too much. The group admits that even a fully functional hubless bike might not be as stable or cost-effective as a regular one with spokes, but they believe it could still appeal to commuters who value the extra storage space. They've also mentioned possibly remaking the compartment out of a wire mesh, to cut down on crosswind resistance and allow rainwater to drain from it.

Sources: David Hotard,
http://www.davidhotard.com/

Core77
http://www.core77.com/blog/case_study/reinventing_the_hubless_wheel_transport_is_a_trunk_for_your_bike_by_david_hotard_matthew_campbell_edwin_collier_25754.asp


http://www.gizmag.com/transport-hubless-bicycle-with-trunk/

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SkyRunner car goes off-road and off-ground

By Ben Coxworth October 31, 2013
Back in 2008, we heard about a parasail-equipped dune buggy, known as the Parajet Skycar. It could scramble over rough ground like a true off-roader, but then take to the skies when needed. One epic 6,000-km (3,728-mile) drive/flight from London to Tombouctou later, its creators got some ideas about how the design could be improved. The result is the lighter, better-flying and less-polluting SkyRunner – and you can order one now.

The SkyRunner taking off The 926-lb (420-kg) vehicle is powered by a 1.0-liter EcoBoost direct injection turbo engi...The SkyRunner is currently in the process of acquiring its light sport aircraft certificat...The SkyRunner's tablet-equipped cockpit View all
Like other parasail vehicles, the SkyRunner has a propeller on the back, along with a parachute-like paraglider wing that packs down when not in use. When it's time to take flight, the wing is laid out behind the car, its propeller is fired up, then it zips along the ground until it reaches 37 mph (60 km/h), at which point the lifting force of the wing pulls everything into the air.

No airport runway is necessary, as a grassy field, beach, or other sufficiently long and empty area is sufficient. A Sport Pilot license, however, is required.

Once airborne, the SkyRunner is reportedly fairly easy to control, as the pilot only needs to manage its pitch and roll. Should trouble arise, a reserve chute can be deployed.

The 926-lb (420-kg) vehicle is powered by a 1.0-liter EcoBoost direct injection turbo engi...
The 926-lb (420-kg) vehicle is powered by a 1.0-liter EcoBoost direct injection turbo engine that produces 200 Nm (147.5 ft lb) of torque, and pushes the car from 0 to 60 mph (97 km/h) in 4.3 seconds. It has a top speed of 115 mph (185 km/h) on the ground and 55 mph (89 km/h) in the air, with one tank of gas taking it 500 miles (805 km) on the road at 56.5 mpg (5 L/100 km), or 200 nautical miles (322 km) in the sky.

The SkyRunner is currently in the process of acquiring its light sport aircraft certification. In the meantime, the company is accepting US$1,500 deposits from potential buyers. The vehicle is hoped to be ready for delivery next year, and will cost $119,000.

While some people may see it as a rich man's toy, its suggested buyers include emergency medical teams, aerial survey companies, pipeline companies, and search and rescue teams. In fact, the very similar Maverick parasail car was designed primarily to deliver medical supplies to remote African villages.

Source: SkyRunner
http://www.fly-skyrunner.com/#top

http://www.gizmag.com/skyrunner-flying-parasail-car/29627/
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hoy tocaba correr una hora por arena, tierra y grava y con algùn que otro dolorcillo se terminò sin problemas...