Teahupo’o is the name of a large reef break in Tahiti. Named after a village on the southwest coast of the island, the break is renowned for its consistent barrels, heavy waves and shallow shoreline. An extremely shallow coral reef, which ranges up to 20 inches beneath the water’s surface creates an unusual wave shape with an effect of almost breaking below sea level. The wave’s unique shape is due to the specific shape of the reef beneath the wave. Its semi circular nature, which drops down sharply creates a ‘below water’ effect and the extreme angles in descent create an instant instability to the wave.

TeahupooImage via Surfblogspot

According to Surfing Atlas:

The extreme angle creates instant instability in the wave. The second stage of the reef proceeds uniformly down to the 300 metres contour in about 50 metres of distance, or a ratio of about 1/6 (.1667). The maximum steepness a wave is able to endure before it breaks is .17. So when height (h) is > .17 of wavelength (λ) then the wave will break. The reef at Teahupoo moves the entire available energy mass of the wave all the way from 300m to the 10m mark of the first stage of the reef at the maximum angle permissible prior to a wave breaking. Then at 10m prior to reaching the surface it puts up a steep wall of reef that causes the entire mass to fold onto a scalloped semi-circle breaking arc.

The result is an incredible moving wall of water. The video below was taken August 27th 2011 during the Billabong Pro waiting period. The French Navy labeled this day a double code red prohibiting and threatening to arrest anyone that entered the water.

Uncommon Skateboard Tricks In Super Slow Motion

Watching these uncommon flat ground (street) skateboard tricks slowed down to 1,000 frames per second really highlights how difficult they are to execute. Watch through to the end to see all the tricks shown again at actual speed. Flabbergasting. The tricks performed in the order of appearance are:

  • Nollie Dolphin Flip (AKA Nollie Forward Flip)
  • Backside 180 Casper Flip (or BS 180 Hospital Flip)
  • Nollie Heelflip BS Body Varial
  • Nollie 360 Shuv Underflip (AKA Nerd flip)
  • Frontside Shuv Underflip (AKA Kiwi flip)
  • Hardflip Pretzel
  • Merlin Twist (Switch front foot impossible fs 180)
  • Nollie Heelflip Indy Grab
  • Early Grab Frontside 180 Fingerflip
  • Pressure Hardflip
  • Jovan flip
  • Backside Pop Shuv Underflip
  • Nollie Pressure Hardflip
  • It should be noted that since skateboarding trick names are defined by a common usage naming convention and these tricks are not very common, some of them don’t have well-established names so the creator of the video took some artistic license.

    Security For The 2012 London Olympics Is Nuts

    I’m a lover of sport. I also really enjoy the Olympics on several levels. But reading this “Welcome To Lockdown London” article in the Guardian makes me hope that the Olympics are never held in a place I live. Security has simply reached a point where it’s no longer comforting and, frankly, has become scary.

    In addition to the concentration of sporting talent and global media, the London Olympics will host the biggest mobilisation of military and security forces seen in the UK since the second world war. More troops – around 13,500 – will be deployed than are currently at war in Afghanistan. The growing security force is being estimated at anything between 24,000 and 49,000 in total. Such is the secrecy that no one seems to know for sure.

    During the Games an aircraft carrier will dock on the Thames. Surface-to-air missile systems will scan the skies. Unmanned drones, thankfully without lethal missiles, will loiter above the gleaming stadiums and opening and closing ceremonies. RAF Typhoon Eurofighters will fly from RAF Northolt. A thousand armed US diplomatic and FBI agents and 55 dog teams will patrol an Olympic zone partitioned off from the wider city by an 11-mile, £80m, 5,000-volt electric fence.

    It makes me proud that Denver was the first and only city to ever reject hosting an Olympiad after being selected. The movement against hosting the 1976 winter games was based largely on environmental and financial issues. I can only hope that Colorado’s vote in 1972 will prevent it from ever being the U.S. nominee as the host site. However, there are now talks of Denver exploring a potential bid for the 2022 Winter Olympics.

    via Boing Boing (which is doing a great job of covering the craziness that has become the Games of the Summer XXX Olympiad).

    Surf Is Waaaaaaay Up

    Garrett McNamara recently broke the world record for largest wave ever surfed. McNamara was towed into a 90-foot wall of watery death at Praia do Norte, Nazare, on the southern shores of Portugal. The previous record of 77 feet was set by Mike Parsons in 2008.


    And in case you were wondering, the biggest wave ever recorded by scientists measured 1,720 feet in height and killed two fishermen as it slammed down into Lituya Bay, a fjord located on the coast of Alaska on July 9 1958.

    Grantland (And ESPN Page2) RSS Feed

    Grantland is now up and running. Grantland is Bill Simmons’ new sports/pop culture thing with ESPN. Grantland will feature long-form articles and has an impressive roster of contributors including Malcolm Gladwell, Dave Eggers and Chuck Klosterman, Katie Baker, Molly Lambert, and others. The New York Times Magazine did a great profile of the new site last weekend. The site takes its name from the legendary early 20th century sportswriter Grantland Rice.

    In some respects, Grantland is meant as an antidote to the revolution Simmons helped start. The site will more closely resemble a traditional print publication than a Web site. Its name is a homage to the legendary sportswriter Grantland Rice; its designer is a former art director for New York magazine and Esquire. Unlike news aggregators like The Huffington Post, Grantland will feature only exclusive content. Stories will run long and often include original reporting.

    A lot of people have been disappointed that Grantland doesn’t have an RSS Feed. It’s a little hard to find, but it does. Here is the official RSS feed for Grantland. Try this if you’re looking for the full-article feed for Grantland.

    UPDATE: Upon frequent request, here is the RSS feed to ESPN’s Page2.

    World’s First BMX Triple Back Flip

    A few days ago, on May 28th, Jed Mildon attempted and successfully landed the first BMX Triple Backflip in history. The trick was done in Taupo, New Zealand on a 20 meter (66 foot) roll-in ramp. The height of the ramp in the first part of the video is enough to make me squirm a bit.

    There is also more video about Jed’s preparation for the jump to be seen.

    31 Things You’re Not Allowed To Do During An Ultimate Fighting Championship Bout

    Although Ultimate Fighting Championship (UFC) used the tagline “There are no rules!” in the early 1990s, the UFC did in fact operate with limited rules.

    1. Butting with the head.
    2. Eye gouging of any kind.
    3. Biting.
    4. Hair pulling.
    5. Fish hooking.
    6. Groin attacks of any kind.
    7. Putting a finger into any orifice or into any cut or laceration on an opponent.
    8. Small joint manipulation.
    9. Striking to the spine or the back of the head.
    10. Striking downward using the point of the elbow.
    11. Throat strikes of any kind, including, without limitation, grabbing the trachea.
    12. Clawing, pinching or twisting of the flesh.
    13. Grabbing the clavicle.
    14. Kicking the head of a grounded opponent.
    15. Kneeing the head of a grounded opponent.
    16. Stomping a grounded opponent.
    17. Kicking to the kidney with the heel.
    18. Spiking an opponent to the canvas on his head or neck.
    19. Throwing an opponent out of the ring or fenced area.
    20. Holding the shorts or gloves of an opponent
    21. Spitting at an opponent.
    22. Engaging in an unsportsmanlike conduct that causes injury to an opponent.
    23. Holding the ropes or the fence.
    24. Using abusive language in the ring or fenced area.
    25. Attacking an opponent on or during the break.
    26. Attacking an opponent who is under the care of the referee.
    27. Attacking an opponent after the bell has sounded the end of the period of unarmed combat.
    28. Flagrantly disregarding the instructions of the referee.
    29. Timidity, including, but without limitation, avoiding contact with an opponent, intentionally or consistently dropping the mouthpiece or faking an injury.
    30. Interference by the corner.
    31. Throwing in the towel during competition.