http://runtramp.com/emelie_suunto/#more-1708
http://runtramp.com/
.-..-..-.-.-.-.
La selección de ciclismo femenina de Afganistan es un buen ejemplo. No pedalean para ganar, pedalean para demostrar que pueden y deben hacerlo. Pedalean para cambiar las cosas.
http://www.mtbpro.es/revista/13
.-.-..-..-.-..
En España existían en 1993 más de 7.600 kilómetros de líneas que ya no tienen servicio de trenes, o que nunca llegaron a tenerlo por quedar inconclusas las obras de construcción. Este patrimonio de gran valor histórico y cultural, está rescatado de su olvido y la desaparición total, dado que ofrece un enorme potencial para desarrollar iniciativas de reutilización con fines ecoturísticos, acordes a las nuevas demandas sociales.Desde 1993, estos antiguos trazados ferroviarios están siendo acondicionados para ser recorridos por viajeros un tanto diferentes a los que los transitaron en tren: cicloturistas, caminantes y personas con movilidad reducida.Las personas con movilidad reducida (especialmente minusválidos, ancianos y niños) son los mayores beneficiarios de estas infraestructuras seguras, fáciles y accesibles
http://www.viasverdes.com/itinerarios/mapa_localizacion.asp
.-.-.-.-.-.-.-.-
MSO "El Día de la carrera".
Vídeo promocional de la Maratón Sierra Oeste(MSO). Open de Madrid de Bike-Maratón.Grabado en Navagalamella, Ciruito de la MSO.
.-.-.-.-.-.-.
half of the road
http://player.vimeo.com/video/65941045
.-..-.-.-.-.-
vídeo resumen de una exhibición de Bike Trial celebrada en Jijona, Alicante, celebrada a comienzos de año en el parque Barranquet.
.-.-.-..-.-.-
slp promo from TRIEXPERIENCE on Vimeo.
slp promo.-.-.-..-
Forme ATT 1.0 2013
AHORA €1341.49 envìo gratis a españa
Forme ATT 1.0
The ATT 1.0 inherits our ethos of offering the best complete package possible. Featuring a lightweight custom hydroformed aluminium frame optimized to keep wind resistance to a minimum offering top tier performance on a budget. Take a look at this bike in the flesh and you will be amazed that it isn’t carbon! Full internal cable routing and our finest welding combined with a full aero seat post, wheelset and Tri Bar allow you to maximize your aerodynamics and shave significant time off your race against the clock.
The ATT 1.0 not only features a smooth welded aero profile frame, it also offers a high quality 4za Stratos wheelset with sealed bearings for all round performance and perfect attributes to training as well as Vision aero profile chain rings and low resistance Schwalbe Ultremo tyres.
The front of the bike is the area most likely to be faced with heavy winds so we do not understand why certain manufacturers invest time in developing a quality frame to finish the bike off with a budget basic tri bar and handlebar. The Vision bladed bars featured on the ATT 1.0 are the first priority of our componentry after the frame and wheelset allowing you to slice through the air as efficiently as possible with adjustment where necessary.
It is important to note that to gain speed and reduce your time on a TT specific bike your position must be refined to offer the optimal balance between aerodynamics and power output so unless you already have experience of your ideal aero position please allow at least 1 month of testing and adjustment before entering your first race.
Forme ATT 1.0 Specifications:
Frame: Forme 7005 Aluminium, Hydroformed Aero Tubing, Triple Butted, Smooth Welded, Integrated Seat Clamp & Cable Routing
Fork: Forme T700 3k Carbon Blade Tt Fork, 1-1/8" Carbon Steerer
Handlebar: FSA Vision' Trimax Pro Si R-Bend, Alloy 31.8mm
Stem: One23 Sl Alloy 28.6 X 31.8mm
Handlebar: Tape Forme Ergofit Cork, White
Headset: FSA No.23/Cc, 1-1/8" Integrated, Sealed Angular Contact Bearing
Bottom Bracket: FSA Megaexo Sealed Cartridge Bearing
Chainset: FSA Trimax Pro Tt Compact, 52/38t
Chain: KMC X10, 10-Spd
Saddle: One23 Gel Nose Section For Multi-Position Comfort
Seatpost: Forme Carbon 350mm, Aero Profile, Zero Layback
Wheelset: 4za Stratos, Sealed Bearing
F.Derailleur: Shimano Tiagra
R.Derailleur: Shimano 105, 10-Spd, Mid Cage
Shifters: Microshift BS-A10, Bar End Shifter, 20-Spd
Cassette: Shimano Tiagra, 10-Spd, 12/28t
Brake: Calipers Forme Alloy Dual Pivot, 39 - 52mm, Cartridge Pads
Brake: Levers Tektro Rx4.1 Bar End Levers
Tyres: Schwalbe Ultremo ZX HD Speed Guard, 700x23C, Folding Bead
Buy Forme ATT 1.0 from Chain Reaction Cycles, the worlds largest online bicycle store.
http://www.chainreactioncycles.com/es/es/forme-att-1-0-2013/rp-prod91371
.-.-..-.-.-.-.-
Polar bear fur could hold secret to ultrathin insulation
By Grant Banks February 2, 2014
Mimicking polar bear fur, which is able to insulate the animal's body to temperatures of 98.6° F (37° C) when outside temperatures get as low as -40° F (-40° C) could lead to better building insulation (Photo: Alan D. Wilson)
Image Gallery (2 images)
Put a polar bear and a biophotonics expert together in a chilly room and what do you get? Potentially, better insulation. When looking to uncover the secrets of the impressive insulation properties of polar bear fur, researchers at the University of Namur in Belgium and the University of Hassan I in Morocco found that radiation plays a larger role than conduction in the insulation of polar animals, such as penguins and polar bears, than previously believed.
It was previously thought that feathers and fur work to keep polar animals such as polar bears and penguins warm by trapping a layer of air that slows thermal conduction and loss of body heat. Instead biophotonics scientist Priscilla Simonis and her team found that heat loss between two bodies separated by air was more affected by radiation than by conduction.
Using computer models, the researchers showed how radiative shields, used to mimic individual hairs in a polar bear's fur, effectively backscattered heat. Backscattering is the deflection of energy at an angle of up to 90 degrees from the source. This deflection was not only limited to the infrared spectrum, or heat, but also reflected visible light, helping in animal camouflage in the snowy conditions by making their coats look white (despite appearances, polar bear fur is actually pigment-free and transparent). By adding more shields (hairs) the loss of energy was greatly reduced.
Magnified barbules of a white peacock’s feathers, which feature long appendages that diffu...
The computer model involved a hot and cold thermostat, to replicate the animal’s body and the cold environment, separated by a pocket of air in which the radiative shields were added. In a control test, so-called black-body shields, which absorb all heat and light radiation, were placed in the space between the thermostats to see how much the air aided the transmission of temperature via conduction.
They were replaced with opaque grey-bodied shields in further tests to allow some transmission and also reflection. These grey-bodied shields were said to simulate the hairs or feathers of polar animals. What the researchers found was that by increasing the reflectivity of the grey-bodied shields or by adding more shields, the rate of heat transfer was dramatically reduced.
"This is particularly useful to animals, such as mammals and birds, that live in snowy areas," Simonis said.
This led Simonis to question why building insulation materials are so inefficient when a polar bear with only a couple inches of fur is able to insulate its body to temperatures of 98.6° F (37° C) when outside temperatures get as low as -40° F (-40° C)
"Why do we need at least 60 cm (24 in) of rockwool or glasswool to get a temperature of 20 degrees Celsius (68° F) inside from about -5 degrees Celsius (23° F) outside?" she asked. "Why is the polar bear fur much more efficient than what we can develop for our housing?"
She suggested the study may have a number of applications for humans and could lead to the development of new types of ultrathin insulation. This could not only find use in insulating buildings, but might also result in a new generation of snow clothing, sleeping bags and survival gear.
"The idea is to multiply the interaction of electromagnetic waves with grey bodies – reflecting bodies, like metals, with very low emissivity and no transparency – in a very thin material," Simonis said. "It can be done by either a multilayer or a kind of 'fur' optimized for that purpose."
The research was published in The Optical Society’s (OSA) open-access journal, Optics Express.
Source: The Optical Society
http://www.osa.org/en-us/about_osa/newsroom/newsreleases/2014/fur_and_feathers_keep_animals_warm_by_scattering_l/
http://www.gizmag.com/polar-bear-fur-building-insulation/30578/
No hay comentarios:
Publicar un comentario