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Survival 101. Badass of the Week 2. Dwight Johnson You don't really think of Vietnam as being a tank warfare kind of affair.

Badass of the Week 2

Sure, there were plenty of intense, groin-crushing battles fought during the vicious multi-year slugfest through the jungles of Southeast Asia, but most of these showdowns were the ambush / search-and-destroy sort of events, with infantrymen slogging through armpit-deep mud, fighting off ambushes and human wave attacks in miserable driving rainstorms, and crawling through carefully-dug tunnels laden with booby traps.

You don't exactly picture a Blitzkrieg of Panzers blasting through the hedgerows of Normandy or anything, mostly because trying to drive a tank through a jungle is a logistical undertaking that borders on being retarded. Perhaps that's why Specialist Dwight Johnson of the 1st Battalion, 69th Armor Regiment holds the impressive distinction of being the only tank driver to receive the Medal of Honor for actions in combat during Vietnam. Crazy City Bike Races. Warning!

Crazy City Bike Races

Motion Sickness Alert There are times when you come to TreeHugger for analysis of the latest transit ridership numbers from the Department of Transportation, and there are times when you just want to see really crazy bike rides. Now's the time for the crazy rides! Very High Bike Flip! Amazing Stunt Man. Badass of the Week. Fridtjof Nansen If you can look at this picture and tell me that this isn't one of the sweetest photos of a dude with a 'stache that you've ever seen, then you obviously need to learn a little something about facial hair and being awesome.

Badass of the Week

This picture alone makes the guy badass, even if you didn't know the story behind it. You will be pleased to learn, no doubt, that the man behind this vicious strip of solidified testosterone is sufficiently badass to pull off a soup strainer that epically righteous. It can be no other way. Fridtjof Nansen was a tough-as-nails Norwegian psychopath with an impossible-to-spell first name and an unstoppable desire to constantly freeze his balls off and risk his life in the name of science and kickassery.

Odd Bikes. 15 Amazing Bicycles For The Future of Seoul Seoul is one city that is conscious of the fact that we need to ride more bicycles and loosen up the traffic congestion.

Odd Bikes

To advocate their intent Seoul Design Fair hosted the Seoul Cycle Design Competition 2010, where entries from around the world we welcomed. Adjusting Bike Shifter. In this Skill Builder piece, guest contributor and mountain biker Chris Nodder (author of Bike Boo Boos) explains common problems with bike shifters and how to deal with them. – Gareth Before you mess with the derailleur, consider other potential sources of your poor shifting problem.

Adjusting Bike Shifter

If the rear shifter works properly when using the large chain ring but not the small chain ring, or vice versa, then the rear derailleur hanger might be bent.If the shifting skips when you apply pressure, check that your chain and cassette are not worn.If the shifting skips every third or fourth pedal revolution, check for a tight chain link.If the shifting skips when you go over a bump, and you are riding a full suspension bike, check that your cable housing is long enough. It may be stretching as the suspension flexes, causing the gears to ghost shift at that time. Dirty, rusty, kinked, or damaged cables and cable housing will also make shifting a problem. ClevIndians Comeback! Rock & Ice Climbing. Trick Cyclist. Pedalling superhero Danny MacAskill is the star of a new show that highlights urban street sports.

Trick Cyclist

He shot to fame when a film of his jaw-dropping bike antics captured the public imagination. Then the Edinburgh man was able to give up his day job and spend all his time on his extraordinary talent. Now Channel 4 has starred Danny in Concrete Circus when filmmakers followed him around for a summer. Alongside Danny are skateboarder Kilian Martin, free runners Blue and Phil Doyle and BMX flatlander Keelan Phillips. He was filmed by Stu Thomson. 15 Awesome Rock Climbs.

{*style:<b>In memory of Dan Osman [ VIDEO ] </b>*} has its perils but it can be endlessly thrilling at the same time as it takes you to the most awesome natural spots of the world.

15 Awesome Rock Climbs

However, you normally do not undertake this adventure activity without taking some self-protective measures. Rockclimbing.com. Bicycle Gear Calculator. Top 10 Bicycling Sites. On Sunday I published the “Ultimate top 10 list of Top 10 bicycling lists.”

Top 10 Bicycling Sites

Later I realized that I really didn't care for “No. 9, Top 10 Bicycle Websites.” That list of bicycle websites was assembled by lovetoknow.com. Bicycle Maintenance. This page was last updated 24 May 2007.

Bicycle Maintenance

I often get asked about bicycle maintenance and repairs, and tips for how to ride efficiently. This little manual is intended as a summary of what I have learned over the years. I am not a professional mechanic.