Source: http://extremeactions.blogspot.com/2009/10/horseback-safari-by-desporado-ranch.html
Tuesday, November 30, 2010
Subaru Freeskiing World Tour 2010 Comes To A Close
Subaru Freeskiing World Tour 2010 Comes To A Close
Sadly, the 2010 Subaru Freeskiing World Tour has come to an end. The event was a blast for skiers and fans alike and the awe-inspiring demonstration of talent leaves everyone thirsting for more.Source: NEWS/Freeskiing/Subaru_Freeskiing_World_Tour_Comes_To_A_Close_Results_0622.htm
For Rock-Climbing Guru, the Sky Is His Roof
Charles Victor Tucker III, the harmless and stoned jester of the mountains to some and the scourge of Yosemite National Park to others, is better known as Chongo, a rock climber who wrote books on physics and now sleeps under a tractor-trailer.Source: http://www.nytimes.com/2008/09/30/sports/othersports/30chongo.html?partner=rssnyt&emc=rss
PopSci's Extreme Sports Error
I love the magazine Popular Science, but nobody's perfect, and this time PopSci slipped up.In an otherwise excellent article by John Mahoney about physics in the movies, he criticizes the Vin Diesel adventure xXx by saying that there's no way anyone can outrace an avalanche on a snowboard.
Sorry John, you got that wrong. There's a good chance you wouldn't survive, and it's unwise to try, but it's at least theoretically possible to snowboard to safety in front of an avalanche.
The problem is that Mahoney is under the mistaken impression that the downhill speed record on a snowboard is only a piddling 50 miles per hour. In fact, the record is closer to 125 miles per hour (201 kilometers per hour). Even that's a bit slow for my comfort, considering that avalanches typically move (according to Mahoney) at minimum of 130 miles per hour. But with a slight head start, you could certainly stay out of trouble for a little while.
Considering that a slow avalanche would overtake a world class speed snowboarder (which I am assuming Vin's character must have been) at a relative speed of about 5 miles per hour, the gradual approach of the avalanche on Vin's heels would have been a very dramatic (and entirely possible) moment.
Check out a these videos of legendary snowboarder Big Mountain Jeremy Jones racing some avalanches (Jeremy actually performed Vin Diesel's snowboarding stunts in xXx). It seems like a really stupid thing to do. Thank goodness he survived. But as you can see, he snowboards (and falls) at about the same rate as the avalanche.
Mahoney should probably have realized his error by considering the fact that both snowboarders and avalanches descend the mountain with very little friction. In other words, the only force affecting the descent is gravity (to a pretty good approximation anyway).
Galileo showed that when friction and drag are low, all things accelerate (and slide down hills) at the same rate under the pull of gravity, regardless of size or mass. So whether you're a snowboarder, a boulder, or an avalanche, your fastest trip down a mountain is going to be about the same.
Why do some avalanches fall at speeds that top out around 200 mph (as Mahoney notes)? Because they are sliding down VERY steep slopes. If you were to snowboard down those sorts of slopes, you could theoretically go just as fast as the avalanche. Snowboard speed records are generally set on slopes that descend at a little over 30 degrees. If the slopes were steeper, the speed records would be higher.
Source: http://feedproxy.google.com/~r/blogspot/uUCU/~3/jacn3QD1wl8/popscis-extreme-sports-error.html
Elias Amb�hl Rocks The Fridge Festival Big Air In Budapest
Elias Amb�hl Rocks The Fridge Festival Big Air In Budapest
Budapest hosted the first ever major freeski event in Eastern Europe with the Fridge Festival last weekend. This event is an exciting preview of the superior freeskiing that the upcoming winter season has in store.Source: NEWS/Freeskiing/Fridge_Festival_Big_Air_2010_Budapest_Results_0809.htm
Laura "For-Real" Spotlight
Laura Farrell gives an update from her 2010 season in California.
-7 Finger media-
Cast: 7 Finger media
Monday, November 29, 2010
With Luck, a Rocky Landing
Rock climbers in the Czech Republic leap from one soaring outcropping to another, risking painful landings or worse, if they miss.Source: http://www.nytimes.com/2008/07/11/sports/othersports/11jump.html?partner=rssnyt&emc=rss
ASA BMX Triples 2010 At Bryce Jordan Center In Pennsylvania
ASA BMX Triples 2010 At Bryce Jordan Center In Pennsylvania
October may seem like it is far off in the distance, but now is the time to think about the 2010 BMX Triples event on October 23. Tickets are now on sale for the BMX contest at the Bryce Jordan Center in Pennsylvania.Source: NEWS/Biking/ASA_BMX_Triples_2010_Bryce_Jordan_Pennsylvania_Preview_0731.htm
LG Snowboard FIS World Cup 2011: Prommegger's Unexpected Win
LG Snowboard FIS World Cup 2011: Prommegger's Unexpected Win
The first event of the 2011 LG Snowboard FIS World Cup goes to Austrian Andreas Prommegger. He adds to the long list of Austrians that have dominated the competition in Landgraaf, Holland.Source: NEWS/Snowboarding/LG_Snowboard_FIS_World_Cup_2010_Landgraaf_Holland_Results_0787.htm
Xterra World Tour 2010: Next Stop Saipan
Xterra World Tour 2010: Next Stop Saipan
Following the great championship in South Africa, racers now prepare to set their minds and bodies to the limit in the ninth annual Xterra Saipan Championship Race.Source: NEWS/Extreme_Sports/Xterra_World_Tour_2010_Next_Stop_Saipan_Preview_0583.htm
Record Number Of Teams Registered For Abu Dhabi Adventure Challenge 2010
Record Number Of Teams Registered For Abu Dhabi Adventure Challenge 2010
Since its inception in 2007, the Abu Dhabi Adventure Challenge has built on previous accomplishments, bringing ever-increasing numbers to its ranks further cementing its position as the world�s premier adventure race.Source: NEWS/Extreme_Sports/Abu_Dhabi_Adventure_Challenge_2010_Preview_0778.htm
Anatomy of a Monster Aerial
When snowboarding's living legend Terje Haakonsen launched off of the big quarterpipe at The Arctic Challenge last March, he sailed 9.8 mind-blowing meters (32 feet) in the air. He set the world record for big air on a snowboard and gave us some wicked footage to boot. Transworld's video is my favorite clip of Terje's air, but the YouTube video below is pretty entertaining too.
I thought it might be interesting to run some of the numbers to see what sort of physics was involved when Terje shattered the record. Here's what I've come up with so far . . .
-Terje's top speed as he approached the bottom of the giant quarterpipe was at least 70.92 kilometers per hour (44.1 mph).
-The g-forces he experienced as he rode up the ramp peaked out at around 4 to 5 times the force of gravity, which means his legs were briefly supporting the equivalent of about 337 kilograms (743 pounds) or more.
-Terje's trip above the top of the ramp lasted just about 2.8 seconds, although I'm sure it seemed a lot longer to him.
-As you may recall from my post about the FMX backflip limit, it takes energy to rotate as well as catch air. Terje set the record with a massive 360 aerial. If he hadn't been spinning he could have gone just a little higher. But it turns out that doing an air-to-fakie instead of a 360 would have only boosted him another centimeter or so. It looks like the Arctic Challenge judges couldn't have measured such a slight difference, so he still would have ended up with the same 9.8 meter record.
What if Terje had approached the hill at world record downhill snowboarding speeds instead?
-At an approach speed of 201 kilometers per hour (124 mph), the current world record for snowboarding, Terje would have sailed about 79 meters (259 feet)in the air.
-He would have experienced a crushing g-force 32 times gravity, the equivalent of about 2400 kilograms (5291 pounds), as he rode up the ramp.
-His total hang time would have been about 8 seconds.
In case you want to check the numbers yourself, I've listed the equations and other information I used to make these estimates below.
The Mathy Bits
Some of the things you need to know to analyze Terje's monster air are
Terje's mass - roughly 75 kilograms
The radius of the Arctic Challenge quarterpipe's transition - about 10 meters
Terje's moment of inertia when he reaches down to grab the board is about 5 kilogram meters^2. (I got that number from page 313 of a book called "The Physics of Sports", edited by Angelo Armenti, Jr.)
The equation for gravitational potential energy, E = m g h
where,
E = energy
m = mass
h = height
The kinetic energy equation, E = (1/2) m v^2
where v is velocity, and v^2 means velocity squared
The centripetal force equation F = (m v^2)/r
where r is the radius of the quarterpipe's transition.
The equation for motion of an object under constant acceleration x = x0 + v0 t + (1/2)g t^2
where g is the acceleration due to gravity
t is time and t^2 is time squared
The equation for rotational energy is E = (1/2) I w^2
where I is moment of inertia
w is angular velocity
I thought it might be interesting to run some of the numbers to see what sort of physics was involved when Terje shattered the record. Here's what I've come up with so far . . .
-Terje's top speed as he approached the bottom of the giant quarterpipe was at least 70.92 kilometers per hour (44.1 mph).
-The g-forces he experienced as he rode up the ramp peaked out at around 4 to 5 times the force of gravity, which means his legs were briefly supporting the equivalent of about 337 kilograms (743 pounds) or more.
-Terje's trip above the top of the ramp lasted just about 2.8 seconds, although I'm sure it seemed a lot longer to him.
-As you may recall from my post about the FMX backflip limit, it takes energy to rotate as well as catch air. Terje set the record with a massive 360 aerial. If he hadn't been spinning he could have gone just a little higher. But it turns out that doing an air-to-fakie instead of a 360 would have only boosted him another centimeter or so. It looks like the Arctic Challenge judges couldn't have measured such a slight difference, so he still would have ended up with the same 9.8 meter record.
What if Terje had approached the hill at world record downhill snowboarding speeds instead?
-At an approach speed of 201 kilometers per hour (124 mph), the current world record for snowboarding, Terje would have sailed about 79 meters (259 feet)in the air.
-He would have experienced a crushing g-force 32 times gravity, the equivalent of about 2400 kilograms (5291 pounds), as he rode up the ramp.
-His total hang time would have been about 8 seconds.
In case you want to check the numbers yourself, I've listed the equations and other information I used to make these estimates below.
The Mathy Bits
Some of the things you need to know to analyze Terje's monster air are
Terje's mass - roughly 75 kilograms
The radius of the Arctic Challenge quarterpipe's transition - about 10 meters
Terje's moment of inertia when he reaches down to grab the board is about 5 kilogram meters^2. (I got that number from page 313 of a book called "The Physics of Sports", edited by Angelo Armenti, Jr.)
The equation for gravitational potential energy, E = m g h
where,
E = energy
m = mass
h = height
The kinetic energy equation, E = (1/2) m v^2
where v is velocity, and v^2 means velocity squared
The centripetal force equation F = (m v^2)/r
where r is the radius of the quarterpipe's transition.
The equation for motion of an object under constant acceleration x = x0 + v0 t + (1/2)g t^2
where g is the acceleration due to gravity
t is time and t^2 is time squared
The equation for rotational energy is E = (1/2) I w^2
where I is moment of inertia
w is angular velocity
Source: http://feedproxy.google.com/~r/blogspot/uUCU/~3/oB7RQ3yrd-Y/anatomy-of-monster-aerial.html
Sunday, November 28, 2010
Burnt Ranch Gorge
Burnt Ranch Gorge of the trinity River in northern California is a nice short section within an hour of Acrata/ the coast. It is running nearly 365 days a year and was my weekly paddle adventure for about 2.5 month.
- David
Cast: 1596 Media
ADAC Day 4: Sun and sand take a toll
ADAC Day 4: Sun and sand take a toll
At 7 o�clock this morning the 36 teams set out in a thick veil of fog from Moreeb Dune with the prospect of a 36-hour struggle with the sands on this massive 107km desert trekking stage.Source: NEWS/Extreme_Sports/Abu_Dhabi_Adventure_Challenge_Day_2009_4_0223.htm
CWWC Sukay Park World Finals threatened by interruption
CWWC Sukay Park World Finals threatened by interruption
The good atmosphere of the final weekend of the Sukay Park World Trophy 2009 in Bursa, Turkey, was overshadowed by dark clouds and stormy winds. Thanks to the organizers the Wakeboard competition was able to continue an hour later.Source: NEWS/Wakeboarding/Sukay_Park_World_Trophy_Finals_2009_Bursa_0517.htm
Kitetrick-Sequence
m-san_Cear� posted a photo:
Unknown rider performing @ Ilha do Guajiru, Ceara, Brasil.
Saturday, November 27, 2010
ASA Big Air Triples 2010: Banasiewicz Nails 3 Double Front Flips
ASA Big Air Triples 2010: Banasiewicz Nails 3 Double Front Flips
The 15 year old Brett Banasiewicz claimed the title at the 2010 ASA Big Air Triples by successfully landing three runs with double front flips.Source: NEWS/Biking/ASA_Big_Air_Triples_2010_Augusta_Georgia_Results_0716.htm
Aspiring Reporters Wanted for Red Bull X-Fighters
Aspiring Reporters Wanted for Red Bull X-Fighters
Red Bull Reporter is a nationwide search to find the best, young, music, culture and sports writers, filmmakers, presenters and photographers, giving them the opportunity of a lifetime; the chance to use their skills and realise their passions as a Red Bull Reporter.Source: NEWS/Biking/Red_Bull_Reporters_2010_Red_Bull_X-Fighters_0705.htm
Porsche Design staged by Hollywood
Does form always follow function? Do you feel that you truly understand the principles of style? Let us take you on a journey - or better put - to a duel? Billy Zane and Karel Roden will show you what it's all about. More information on http://www.porschedesign-thebattle.com
GEAR TEST WITH MARK BRONTSEMA AND SAM WELLS, ROCK CLIMBERS; Because Climbing Is Social
Rock climbers Mark Brontsema and Sam Wells test out four climbing helmets for fit, comfort, durability and price; photos
kayak season 2010
some footage of kayaking in austria (styria, upper austria)
Cast: Lukas Strobl
Friday, November 26, 2010
"Runnable" (Coming June 2011)
The new kayaking film "Runnable". A 10min film with a cinematic look... Coming June 2011.
For more infos, go to GautierGrollemund.com
Cast: Gautier Grollemund
The North Face Freeskiing World Tour Heads to South America
The North Face Freeskiing World Tour Heads to South America
The world�s best freeskiers are on their way to South America for the first few stops of the Freeskiing World Tour. These snowy mountains are the perfect place to fight for the event title, World Tour points, and a cash purse.Source: NEWS/Freeskiing/The_North_Face_Freeskiing_World_Tour_Argentina_Preview_0749.htm
Jonathan Bergeron Jose Felix Hormaetxe Josh Clark Josh Obert
The Wheel Deal Part 1: Wheel Size
Many extreme sports rely on wheels of one type or another, including skateboarding, mountain boarding, inline skating, street luge, BMX and FMX. Different situations require different types of wheels, depending on the terrain and the types of riding you're doing.My favorite extreme sport is skateboarding, so this post focuses primarily on the options available in skate wheels. But the physics involved applies to any wheeled sport.
If you skate, you know that there are lots of wheels designs on the market from tiny, rock-hard wheels for street skating to giant, gummy wheels for old school cruising. Why are some wheels better for certain uses and not so good for others? As you probably guessed - it all comes down to physics.
Wheel Size
Among the many things you need to consider in choosing the best wheel for your riding is size. Most pro street skaters opt for small wheels. It's a good choice. Small wheels are fast on smooth surfaces such as skate park concrete, wood ramps, and most of the boxes, benches and banks you're likely to hit. But on asphalt or chewed up concrete, little wheels are much slower than big wheels. Just about every skater has at one time or another had the unpleasant experience of running across a pebble or crack that stops their board dead in it's path, sending the rider for a rough tumble. Those sorts of sudden stops are more likely if you ride tiny wheels.
So, what's size got to do with it? Well, here's a little sketch to show you what's going on.
The small red cirle represents a wheel with a diameter of about 50 millimeters, typical of lots of street and park wheels. The big black circle is like a large (95 millimeter) cruising wheel. This sketch shows the wheels just as they hit the edge of a 20 millimeter step (in this picture, I'm imagining the wheels rolling to the right), which is the sort of thing you might run across as you ride over the joints between sections of a typical sidewalk.The arrows show the direction of the force that results from the wheels hitting the obstacle. As you can see, the black arrow points up and to the left. That means some of the force pushes the wheel upward and some of it pushes back.
The red arrow is mostly pointed to the left and just a bit up, which means most of the force exerted by hitting the step goes into slowing the wheel, and the board it's attached to.
Of course, most of the bumps and cracks you'll run across in real life are a lot smaller than this. Even for smaller obstacles, though, more force will go into slowing a small wheel down than would go into slowing a larger wheel. You'll still get a force pushing the larger wheel upward, which makes for a rough ride, but at least it doesn't do as much to sap your speed (or stop you in your tracks).
If you race down a big hill made of asphalt, you end running over lots of little bumps that seriously slow small wheels, but aren't such a problem for big ones.
Are big wheels always better than small ones? Not at all. In fact, small wheels are usually MUCH faster than large wheels on smooth surfaces. Want to know why? Check out The Wheel Deal Part 2 in my next post to find out one reason that small wheels are better (sometimes).
Source: http://feedproxy.google.com/~r/blogspot/uUCU/~3/WRmZPn7vfuU/wheel-deal-part-1-wheel-size.html
Subaru Trailer - "Hockey Mom"
Subaru Commercial Hockey Mom: We follow quick shots of a hockey mom and her triplet boys as they live the life of being on a youth league traveling hockey team.
On the drive home -- Mom sees all three boys in the back of the car, asleep with their trophy across their laps.
When you're responsible for this much of the team, you need a car you can count on.
Background music ("If I Should Fall From Grace With God", The Pogues)
![Subaru Trailer - "Hockey Mom"](http://ll.broadbandsports.com/images/40333_thumb.jpg "Subaru Trailer - "Hockey Mom"")
On the drive home -- Mom sees all three boys in the back of the car, asleep with their trophy across their laps.
When you're responsible for this much of the team, you need a car you can count on.
Background music ("If I Should Fall From Grace With God", The Pogues)
Pro Wakeboard Tour 2010: Harley Clifford Wins In Acworth
Pro Wakeboard Tour 2010: Harley Clifford Wins In Acworth
The top wakeboarders of the world took to the water in Acworth, Georgia for the 2010 Pro Wakeboard Tour. After several rounds of elimination, Harley Clifford was left standing as Acworth's winner.Source: NEWS/Wakeboarding/Pro_Wakeboard_Tour_2010_Acworth_Harley_Clifford_Results_0694.htm
The FMX Awards: Robbie Maddison Best International FMX Rider
The FMX Awards: Robbie Maddison Best International FMX Rider
After all of their hard work and perseverance, the FMX Awards is the perfect way to recognize the best FMX riders of the year. The award ceremony has been held annually since 2006.Source: NEWS/Biking/The_FMX_Awards_Robbie_Maddison_Best_International_FMX_Rider_0670.htm
Villain is here!
Promo video of the new JK creekboat - Villain!
Cast: ROCKS & WATER production
Thursday, November 25, 2010
Currents - Episode 8 - Thailand
Follow Currents on the CURRENTS Channel: vimeo.com/channels/141690
Currents is a river stewardship focused WebTV program (online video documentary) which uses white water kayaking as a means to educate a broader audience about the risks threatening the world?s rivers and to help highlight the intrinsic value of preserving rivers in their natural state.
More info at five2nine.ca.
Search Five 2 Nine Productions on Facebook and Twitter
Cast: Five 2 Nine Productions
2010 Burton New Zealand Open: Swatch TTR Tour Continues in New Zealand
2010 Burton New Zealand Open: Swatch TTR Tour Continues in New Zealand
Winter is in full swing down in the Southern Hemisphere, providing the perfect opportunity for the Burton New Zealand Open and for snowboarding fanatics to spend some more time on the slopes.Source: NEWS/Snowboarding/2010_Burton_New_Zealand_Open_Preview_0746.htm
The Eerie Splendor Of Devils Tower
Article on guided crack-climbing journey up face of Devils Tower in Devils Tower National Monument in Wyoming; photos; maps
Getting a Goat?s View of Sardinia?s East Coast
The best way to see the ruggedly gorgeous coast of the Orosei Gulf is by hiking a little known trail, lined with limestone cliffs and isolated beaches.Source: http://travel.nytimes.com/2009/02/22/travel/22explorer.html?partner=rssnyt&emc=rss
Anatomy of a Monster Aerial
When snowboarding's living legend Terje Haakonsen launched off of the big quarterpipe at The Arctic Challenge last March, he sailed 9.8 mind-blowing meters (32 feet) in the air. He set the world record for big air on a snowboard and gave us some wicked footage to boot. Transworld's video is my favorite clip of Terje's air, but the YouTube video below is pretty entertaining too.
I thought it might be interesting to run some of the numbers to see what sort of physics was involved when Terje shattered the record. Here's what I've come up with so far . . .
-Terje's top speed as he approached the bottom of the giant quarterpipe was at least 70.92 kilometers per hour (44.1 mph).
-The g-forces he experienced as he rode up the ramp peaked out at around 4 to 5 times the force of gravity, which means his legs were briefly supporting the equivalent of about 337 kilograms (743 pounds) or more.
-Terje's trip above the top of the ramp lasted just about 2.8 seconds, although I'm sure it seemed a lot longer to him.
-As you may recall from my post about the FMX backflip limit, it takes energy to rotate as well as catch air. Terje set the record with a massive 360 aerial. If he hadn't been spinning he could have gone just a little higher. But it turns out that doing an air-to-fakie instead of a 360 would have only boosted him another centimeter or so. It looks like the Arctic Challenge judges couldn't have measured such a slight difference, so he still would have ended up with the same 9.8 meter record.
What if Terje had approached the hill at world record downhill snowboarding speeds instead?
-At an approach speed of 201 kilometers per hour (124 mph), the current world record for snowboarding, Terje would have sailed about 79 meters (259 feet)in the air.
-He would have experienced a crushing g-force 32 times gravity, the equivalent of about 2400 kilograms (5291 pounds), as he rode up the ramp.
-His total hang time would have been about 8 seconds.
In case you want to check the numbers yourself, I've listed the equations and other information I used to make these estimates below.
The Mathy Bits
Some of the things you need to know to analyze Terje's monster air are
Terje's mass - roughly 75 kilograms
The radius of the Arctic Challenge quarterpipe's transition - about 10 meters
Terje's moment of inertia when he reaches down to grab the board is about 5 kilogram meters^2. (I got that number from page 313 of a book called "The Physics of Sports", edited by Angelo Armenti, Jr.)
The equation for gravitational potential energy, E = m g h
where,
E = energy
m = mass
h = height
The kinetic energy equation, E = (1/2) m v^2
where v is velocity, and v^2 means velocity squared
The centripetal force equation F = (m v^2)/r
where r is the radius of the quarterpipe's transition.
The equation for motion of an object under constant acceleration x = x0 + v0 t + (1/2)g t^2
where g is the acceleration due to gravity
t is time and t^2 is time squared
The equation for rotational energy is E = (1/2) I w^2
where I is moment of inertia
w is angular velocity
I thought it might be interesting to run some of the numbers to see what sort of physics was involved when Terje shattered the record. Here's what I've come up with so far . . .
-Terje's top speed as he approached the bottom of the giant quarterpipe was at least 70.92 kilometers per hour (44.1 mph).
-The g-forces he experienced as he rode up the ramp peaked out at around 4 to 5 times the force of gravity, which means his legs were briefly supporting the equivalent of about 337 kilograms (743 pounds) or more.
-Terje's trip above the top of the ramp lasted just about 2.8 seconds, although I'm sure it seemed a lot longer to him.
-As you may recall from my post about the FMX backflip limit, it takes energy to rotate as well as catch air. Terje set the record with a massive 360 aerial. If he hadn't been spinning he could have gone just a little higher. But it turns out that doing an air-to-fakie instead of a 360 would have only boosted him another centimeter or so. It looks like the Arctic Challenge judges couldn't have measured such a slight difference, so he still would have ended up with the same 9.8 meter record.
What if Terje had approached the hill at world record downhill snowboarding speeds instead?
-At an approach speed of 201 kilometers per hour (124 mph), the current world record for snowboarding, Terje would have sailed about 79 meters (259 feet)in the air.
-He would have experienced a crushing g-force 32 times gravity, the equivalent of about 2400 kilograms (5291 pounds), as he rode up the ramp.
-His total hang time would have been about 8 seconds.
In case you want to check the numbers yourself, I've listed the equations and other information I used to make these estimates below.
The Mathy Bits
Some of the things you need to know to analyze Terje's monster air are
Terje's mass - roughly 75 kilograms
The radius of the Arctic Challenge quarterpipe's transition - about 10 meters
Terje's moment of inertia when he reaches down to grab the board is about 5 kilogram meters^2. (I got that number from page 313 of a book called "The Physics of Sports", edited by Angelo Armenti, Jr.)
The equation for gravitational potential energy, E = m g h
where,
E = energy
m = mass
h = height
The kinetic energy equation, E = (1/2) m v^2
where v is velocity, and v^2 means velocity squared
The centripetal force equation F = (m v^2)/r
where r is the radius of the quarterpipe's transition.
The equation for motion of an object under constant acceleration x = x0 + v0 t + (1/2)g t^2
where g is the acceleration due to gravity
t is time and t^2 is time squared
The equation for rotational energy is E = (1/2) I w^2
where I is moment of inertia
w is angular velocity
Source: http://feedproxy.google.com/~r/blogspot/uUCU/~3/oB7RQ3yrd-Y/anatomy-of-monster-aerial.html
Adam Kilgore Alessandra Nanni Alex Broskow Andre Englehart Andreas Trefzer
Nine Knights Big Air 2010: Markus Eder Is Winner
Nine Knights Big Air 2010: Markus Eder Is Winner
The story is like something out of a fairytale. Markus Eder never dreamed that his "Wanna Be A Knight?" video would launch his freeskiing career and crown him the winner of the 2010 Nine Knights big air contest.Source: NEWS/Freeskiing/Nine_Knights_Big_Air_2010_Markus_Eder_Is_Winner_0661.htm
In Malibu, a Rock Scene Where Hollywood Cameras Roll
The Santa Monica Mountains, which made cameos in ?M*A*S*H,? ?Iron Man? and ?Tarzan Escapes,? offer hundreds of rock-climbing routes.Source: http://travel.nytimes.com/2009/04/10/travel/escapes/10rock.html?partner=rssnyt&emc=rss
Wednesday, November 24, 2010
Autumn Austria
Rocks&Water Productions team up with Austria locals for some action. Result - one dislocated shoulder, two cracked boats and one broken paddle...Despite that, we had a sick time!
Cast: ROCKS & WATER production
Villain is here!
Promo video of the new JK creekboat - Villain!
Cast: ROCKS & WATER production
Summer Feast 2010: Camping Vacation At Snowdome In Bispingen
Summer Feast 2010: Camping Vacation At Snowdome In Bispingen
It's summer, the temperatures are rising and all of the snowboarders and free skiers still have the opportunity to rock their sports in an icy snow hall. That's why many of them are heading to the Snowdome in Bispingen, Germany for the Summer Feast 2010.Source: NEWS/Snowboarding/Summer_Feast_2010_Snowdome_Bispingen_Preview_0728.htm
Getting a Goat?s View of Sardinia?s East Coast
The best way to see the ruggedly gorgeous coast of the Orosei Gulf is by hiking a little known trail, lined with limestone cliffs and isolated beaches.Source: http://travel.nytimes.com/2009/02/22/travel/22explorer.html?partner=rssnyt&emc=rss
Swatch TTR World Championship: Enni Rekaj�rvi Celebrates Her Win
Swatch TTR World Championship: Enni Rekaj�rvi Celebrates Her Win
She may be young, but Finland's Enni Rukaj�rvi has proven that she is an athlete that should be feared by her competitors. With the contest in the past, the TTR World Champion celebrates her amazing victory.Source: NEWS/Snowboarding/Swatch_TTR_World_Championship_Enni_Rekajarvi_Celebrates_Her_Win_Results_0630.htm
Tuesday, November 23, 2010
TTR World Snowboard General Assembly 2010
TTR World Snowboard General Assembly 2010
Snowboard sport representatives from across the world came together for two days in Barcelona, Spain, to discuss the future of competitive snowboarding.Source: NEWS/Snowboarding/TTR_World_Snowboard_General_Assembly_2010_0697.htm
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