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I wasn't trolling! It just seemed to me like the sort of thing that sounded like a good idea but was actually a useless gesture. Like 'ooh look, let's have bike pumps around the city, like how there are petrol stations, because we're trying to promote cycling. That way it'll be like bikes are replacing cars.' The same thinking is (I assume) what leads to there being loads of electric car charging points near me, and every single one is always empty.
I guess if Sumo's sister sees a pump like this, pumps her tires up and thus enjoys cycling more, and if loads of other people do the same, then it's a good thing.
The problem of underinflated tyres.
I had no idea this was such a pressing issue!
Anyway apologies for thread derail.
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I wasn't trolling! It just seemed to me like the sort of thing that sounded like a good idea but was actually a useless gesture.
In other places pumps like these have been provided and appreciated for years, and they have proved their utility. It is a good idea.
Like I said, let's see how they fare in London's famous London.
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[Then the action begins … Perri Shakes-Drayton looks comfortable in the 400m hurdles heats for Great Britain, winning in 54.62 seconds Photograph: Tom Jenkins/Guardian](http://www.guardian.co.uk/sport/gallery/2012/aug/05/london-2012-athletics-olympic-stadium-in-pictures#/?picture=394202218&index=1) -
I know it's hard to comprehend, but most cyclists know fuck all about bikes.
This I can believe. I don't know anything really either.
Like I said, let's see how they fare in London's famous London.
They're in Hackney right? I imagine people will manage to turn them into crack pipes or weapons.
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50psi is not the ideal level for a tyre
It is for some combination of rider, duty cycle and tyre.
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I believe the cycle pumps are actually replacing existing cycle pumps which have been in those places for some years. Jack Thurston tweeted about it recently:
https://twitter.com/thebikeshow/status/230254316101976065
Edit: Ah, maintenance. Maybe there are some new ones too...
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Yes, Lambeth has had them for a little longer.
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http://farm8.staticflickr.com/7272/7671199138_0472015b4d_b.jpg
http://farm9.staticflickr.com/8160/7671196744_794db8262a_h.jpgMoar info on these inflation devices, please!
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They're made by Cyclehoop:
http://www.cyclehoop.com/products/category/public-bicycle-pump
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This is one of the first images taken by NASA's Curiosity rover, which landed on Mars the evening of Aug. 5 PDT (morning of Aug. 6 EDT). It was taken through a "fisheye" wide-angle lens on the left "eye" of a stereo pair of Hazard-Avoidance cameras on the left-rear side of the rover. The image is one-half of full resolution. The clear dust cover that protected the camera during landing has been sprung open. Part of the spring that released the dust cover can be seen at the bottom right, near the rover's wheel.
On the top left, part of the rover's power supply is visible.
Some dust appears on the lens even with the dust cover off.
The cameras are looking directly into the sun, so the top of the image is saturated. Looking straight into the sun does not harm the cameras. The lines across the top are an artifact called "blooming" that occurs in the camera's detector because of the saturation.
As planned, the rover's early engineering images are lower resolution. Larger color images from other cameras are expected later in the week when the rover's mast, carrying high-resolution cameras, is deployed.
NASA / JPL-Caltech
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One of my best friends only gets his tyres pumped when I come over. /euph
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I bought miss.ua a track pump, now she does it herself at home and I'm not needed
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Resembling a work of modern art, variegated green crop circles cover what was once shortgrass prairie in southwestern Kansas. The most common crops in this region—Finney County—are corn, wheat, and sorghum. Each of these crops was at a different point of development when the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) captured this image on June 24, 2001, accounting for the varying shades of green and yellow. Healthy, growing crops are green. Corn would be growing into leafy stalks by late June. Sorghum, which resembles corn, grows more slowly and would be much smaller and therefore, possibly paler. Wheat is a brilliant gold as harvest occurs in June. Fields of brown have been recently harvested and plowed under or lie fallow for the year.
Like crops throughout large sections of the U.S. Midwest, these crops are partly fed by water from the Ogallala Aquifer, a giant layer of underground water. One of the largest underground repositories in the world, the Ogallala Aquifer lies under about 450,000 square kilometers of the Great Plains—an area that includes parts of eight U.S. states. The water is between 30 and 100 meters below ground, and the amount of water in the aquifer varies greatly from region to region.
Though the aquifer is a reliable source of water for irrigated cropland, there are some concerns that it could eventually run dry. Most of the water in the aquifer is “fossil water” from the last ice age. The rivers and streams that initially fed the aquifer have long since disappeared in the geologic development of the West after the last ice age. Water now takes a long time to trickle down through the soil to recharge the aquifer, though the rate varies from region to region. Like a bank account, if more water is taken from this underground bank than is deposited into it, it could run dry. For this reason, efforts are being made to conserve the water of the Ogallala Aquifer.
One conservation measure is using water more wisely so less is drawn out of the aquifer. Farmers in this region have adopted a more efficient irrigation method, central pivot irrigation. Central pivot irrigation draws water out of a single well in the center of the field. Long pipes perched on wheels rotate around the pivot, showering the crops with water. Because the water falls directly on the crops instead of being shot into the air as occurs with traditional sprinklers, less water is lost to evaporation and more goes to nourishing the growing plants. Central pivot irrigation also creates perfectly circular fields, as seen in this image. The fields shown here are 800 and 1,600 meters (0.5 and 1 mile) in diameter.
The large image is centered near 37.4 degrees north latitude, 100.9 degrees west longitude, and covers an area of 37.2 x 38.8 km.NASA / GSFC / METI / ERSDAC / JAROS, and U.S. / Japan ASTER Science Team
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And this is the photo thread for fuck sake, not another Ed is the supreme cyclist with indisputable knowledge thread!
http://24.media.tumblr.com/tumblr_m8bylzsJo51qke845o1_1280.jpg
- The diffuser section of the 16-foot supersonic wind tunnel at Tennessee’s Arnold Air Force Base. Whatever you do, don’t stand there when they turn it up to Mach 4. Photo by Lance Cheung.
There are three wind tunnels in this PWT facility. They use two closed-circuit wind tunnels (one to simulate transonic speeds and the other supersonic), with 16-foot-square test sections, are also used for conventional aerodynamic tests. Air that has been pushed through the section seen has passed through progressively narrowing tunnel sections and 90-degree turns that lead to the test section.
The facility is devoted to aerodynamic and propulsion integration testing of large-scale aircraft models. Some of the most powerful electric motors ever built are located in the PWT facility.
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- The diffuser section of the 16-foot supersonic wind tunnel at Tennessee’s Arnold Air Force Base. Whatever you do, don’t stand there when they turn it up to Mach 4. Photo by Lance Cheung.
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http://25.media.tumblr.com/tumblr_m82o9hAeew1qke845o1_1280.jpg
*“When the wave conditions are right a wave appears, infrequently, as a result of the splash back off the cliff connecting with an incoming wave. This causes the incoming wave to pop up, creating fan-like shapes.On this particular day, over the two hours I spent on the rocks, this wave only appeared once. This is that shot.” Photo and caption by Aaron Feinberg.
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lemonade
Oliver Schick
Nef
O'Shane
gbj_tester
CasaSteve
salad
spotter
Ordinata
DethBeard
Wrongcog
Khornight2
edscoble
furious_tiles-
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Photo Of The Day
Posted by
@Crispin_Glover
I had a crappy mountain bike for months, never pumped the tyres, didn't even own a pump. Built a single-speed, still didn't own a pump and used bike shop ones once or twice if I had to. It was only when I moved in with sumo that I realised how great having your own track pump at home was, and that 50psi is not the ideal level for a tyre to be.
I know it's hard to comprehend, but most cyclists know fuck all about bikes.