
Cool invention helps tired players bounce back
It’s also a proven athletic performance enhancer - billed as better than steroids without any ill effects.
“We use the Glove primarily for health reasons,” said Dan Garza, the 49ers’ medical director. “But outside of sports, it has potential for a lot of exciting things. This technology is a much more effective way of cooling the core temperature than what we would typically do - misting, fanning, cold towels, fluids.”
The Glove works by cooling the body from inside out, rather than conventional approaches that cool from outside in. The device creates an airtight seal around the wrist, pulls blood into the palm of the hand and cools it before returning it to the heart and to overheated muscles and organs. The palm is the ideal place for rapid cooling because blood flow increases to the hands (and feet and face) as body temperature rises.
“These are natural mammalian radiators,” said Dennis Grahn, who invented the device with Stanford colleague Craig Heller.
Cool, you can buy your own for only $2,000
(The Glove used to be called Core Control) High resolution image. Related: Research on Reducing Hamstring Injuries - The Science of the Football Swerve - Randomization in Sports - posts on science and athletics
How do they do it?
Well, there’s a rope. There’s a pulley. And the rope and the pulley work a contraption made out of a pipe. The whole gizmo is based on the brilliant insight that objects fall at the same rate regardless of mass. A Tuscan by the name of Galileo came up with it about 400 years ago; if he were alive, he’d call it cutting edge. And there’s the beauty of it: It’s sophisticated, yes, but only because it’s simple.
…
Garrett Brown revolutionized the movie business 38 years ago when he invented the Steadicam, a mechanical arm for cameramen that smooths away the jerkiness of hand-held shots. Much later, he came up with the Skycam, which rides a web of wires above the heads of football players. In between, Mr. Brown, 66 years old, got his one-line brief from NBC: “They wanted a camera,” he says, “that stayed with divers, including going underwater with them.”
…
The falling camera rides a rail on the inside of the pipe. A glass strip runs along the pipe’s full length; the camera takes its picture through the glass. From the diving platform to the water line, the glass is smoky. Below the line, it’s clear, so the camera need not adjust its exposure as it streaks into underwater darkness.
The pipe is caulked. The camera drops through air. “It doesn’t splash into the water,” Mr. Brown said. “That would look horrible.”
The appropriate use of technology is great to see. Applying knowledge well is a key to good engineering.
Related: Using Cameras Monitoring To Aid Conservation Efforts - How Do Wii Game Controllers Work? - Bigger Impact: 15 to 18 mpg or 50 to 100 mpg? - Awesome Cat Cam

Dolphin Kick Gives Swimmers Edge
The dolphin kick first hit Olympic swimming big-time 20 years ago, after Harvard backstroker David Berkoff figured out something fundamental. “It seemed pretty obvious to me that kicking underwater seemed to be a lot faster than swimming on the surface,” Berkoff says.
That’s because there’s turbulence and air on the surface of the water, and they create resistance. The “Berkoff Blastoff,” as it was called, was used at the start and after turns, with long stretches of that underwater undulating kick.
Follow the link for a video of Michael Phelps demonstrating the technique and more interesting details. Photo by A. Dawson shows Michael Phelps diving into the water at the 2008 U.S. Olympic Swimming Trials.
Related: Science of the High Jump - Sports Engineering - Physicist Swimming Revolution - Swimming Robot Aids Researchers
The Making of a Olympian by Arianne Cohen
Every night, Doane analyzes his athlete’s response to the day’s training. He’s looking for the best way to expand Potts’s aerobic capacity, power output and lactate threshold, without overtraining. If Doane sees that Potts’s heartbeat has been sluggish—say, beating 140 times per minute while Potts is trying to produce 410 watts—that means his body is struggling to recover from earlier training, so he’ll dial back the intensity of his workouts. If, on the other hand, his heart rate stays in the sweet spot around 165 while he churns through a series of 360- to 400-watt intervals, that means he’s fully recovered and ready to be pushed again. “We’ve created a feedback loop,” Doane says. In other words, Doane subjects Potts to a careful dose of punishment, and Potts’s body tells Doane, through empirical data, what he needs to do next.
Nice article. As it mentions really almost all Olympic athletes today use a great deal of science in their training.
Related: Baseball Pitch Designed in the Lab - Engineering Sports at MIT - Randomization in Sports
A Revolution That Began With a Kick by Amy Shipley:
Swimmers, coaches and scientists say it is impossible to pinpoint one explanation. They cite many contributing factors, ranging from professional training groups that have sprouted across the United States to greater access to underwater cameras and other advanced technology.
But some say the most significant breakthrough has been a revival of a swimming maneuver developed more than 70 years ago by one of the physicists who worked on the atomic bomb.
Though utilized for decades, the underwater dolphin kick had not been fully exploited by the swimming mainstream until Olympic megastar Michael Phelps and a few other stars began polishing it — and crushing other swimmers with it — in recent years.
Very interesting and another example of how good ideas are often ignored for a long time.
Schrader said Wilson, an alternate on the 1932 Olympic water polo team who studied fish propulsion at a Chicago aquarium, claimed to have shown the kick to Johnny Weissmuller, a training mate at the Illinois Athletic Club. “Weissmuller reproduced it perfectly, but was not impressed by it,” said Schrader in a phone interview, recalling a conversation with Wilson.
…
One of the first swimmers to turn heads with the underwater dolphin kick was David Berkoff, a Harvard graduate who became known for the “Berkoff Blastoff.” In 1988, Berkoff set several world records in the 100 backstroke by dolphin-kicking for 35 meters underwater at the start of the race.
Which goes to show you that you can gain advantages just by using the information that is available - your own innovation is not the only way to get ahead. Just doing a better job of adapting what others learn to your challenges can be very rewarding.
Related: Randomization in Sports - Baseball Pitch Designed in the Lab - Science of the High Jump
Video of humanoid robot football (soccer) competition in German, April 2008. They are a bit slow but it sure looks like this is a fun area to watch the improvement of robot engineering.
Related: RoboCup 2006 - The Science of the Football Swerve - Robo-One Grand Championship - Toyota Robots
Making sports an exact science by Shira Springer
“There are very few sports companies that put value in good engineering, in terms of projects that make engineering sense rather than just marketing sense. When you get to see how your research can actually be used, it’s pretty cool.”
…
The MIT Sports Innovation program, though, was designed to give undergraduates hands-on research experience away from textbooks and classrooms. Working in a Building 17 laboratory cluttered with experiments, where the hum of the wind tunnel can make conversation difficult, the undergraduates brainstorm and build different components of the test setup.
Inside the laboratory and Aero/Astro hangar, the MIT baseball research project looks like a combination of shop class and horror flick: Power tools, quick-drying cement, PVC pipe, handsaws, and mannequin parts are scattered around.
Related: Baseball Pitch Designed in the Lab - Randomization in Sports - The Science of the Football Swerve - Sports Engineering at MIT (2006)
All shows of the PBS TV show, Scientific American Frontiers are available online. The shows feature Alan Alda exploring a wide range of scientific ideas. Specific information for teachers if provided for each show. Shows include:
Related: BBC In Our Time Science Podcast Archive - Curious Cat Science Webcast Directory - Online Science Resources for Teachers - UC-Berkeley Course Videos Online - ScienceLive video archive from Cambridge University
Once again I have created a group on the ESPN NCAA Basketball Tournament Challenge for curiouscat college basketball fans. To participate, go to the curiouscat ESPN group and make your picks.
This year we also have a second challenge, using sportsline, that rewards picking upsets. So those that enjoy the tournament please join the fun. The password for this one is cat
Go Badgers and Go Davidson,
Low-Intensity Exercise Edges Out Fatigue — Without Requiring Lots of Sweat
Here’s all it took: three sessions per week of pedaling a stationary bicycle at a mild pace. They didn’t need to train every day, and they didn’t push themselves too far — just far enough to shake their fatigue
As I have said before, I have found exercise reduces fatigue myself.
Related: Treadmill Desks - Another Paper Questions Scientific Paper Accuracy - Regular Aerobic Exercise for a Faster Brain

Photo looking north across Lake McDonald from my Village Inn balcony in Glacier National Park, by John Hunter.
Do people still care about nature
I must say I am surprised by this. My visits to national parks have led me to believe the attendance was increasing but that seems to be wrong. The National Parks Service has a simple web tool to view visits to US national parks by year. Go visit great parks, here are some photos from my trips: Grand Teton National Park, Rocky Mountain National Park, Shenandoah National Park and Grand Canyon National Park.
Related: Regular Exercise Reduces Fatigue - Monarch Butterfly Migration - $500 Million to Reduce Childhood Obesity in USA - Science Opportunities for Students
Here is my comment on, The Sun Devil Suggestion System:
Here is a post on the Freakonomics blog today, Why Don’t Sports Teams Use Randomization? by Ian Ayres:
He then goes on to discuss an equally interesting but different topic faulting coaches for failing to take enough risk in football - in going for a first down on fourth down. That supports my gut instincts. The “conventional wisdom” seems mainly about not “seeming stupid” not the best long term results.
Related: Testing Mixed-Strategy Equilibria When Players Are Heterogeneous: The Case of Penalty Kicks in Soccer - Minimax Play at Wimbledon - Statistics for Experimenters - sports related posts
Bambi Caught 1.5 miles OFFSHORE
But as it got closer and saw the two fishermen aboard, it had second thoughts. With its nose barely out of the water, it appeared to have been swimming all night, said Campbell. “Since the fish weren’t biting, we thought we’d give it a hand. Bo grew up around cows, was really handy with a bow line and lasooed the deer on the first attempt.”
…
to the closest beach, Kent Point, where I beached the boat and we carefully unloaded our catch on the sand. We untied him and jumped back.
“Too weak to stand, he just sat there quivering. We picked him up again and put his feet underneath him, but he still couldn’t walk or stand. We left him sitting there looking at us. Before we left, I looked him in the eye and said ‘See you on opening day; payback time.’
See link for photos. Related:The Cat and a Black Bear - Polar Bear Playing with Wolves - Water Buffaloes, Lions and Crocodiles Oh My - The Engineer That Made Your Cat a Photographer
Q and A: Richard Palmer interview
CNN: Can you go into the applications of that?
Palmer: You can use d3o in sportswear where you want freedom of movement and dexterity but also want some impact absorption. It’s in footwear, headwear, gloves, clothing and boots.
It means people can get on with their sport without being confounded by pieces of bulky, rigid plastic and cumbersome, stiff foams. It’s the difference between Robocop and Spiderman. Robocop is built with protection around him like a shield; d3o is more like Spiderman, where the protection and the athlete are integrated together. It’s a discrete, small and totally unrestricted layer of protection in the areas where you need it that wouldn’t previously have been possible.
CNN: What advice would you give someone who wanted to become an innovator?
Palmer: Open your eyes to both creative and analytical thinking. Scientists aren’t just boffins; creatives aren’t just mad lunatics. There’s a huge opportunity to dovetail the two. And follow something you believe in.
Related: Entrepreneurial Engineers - What a Computer Game Programmer Needs to Know - Inventor for Hire
The hippocampus plays a large role in how mammals create and process memories; it also plays a role in cognition. If your hippocampus is damaged, you most likely have trouble learning facts and forming new memories. Age plays a factor, too. As you get older, your brain gets smaller, and one of the areas most prone to this shrinkage is the hippocampus. (This can start depressingly early, in your 30’s.) Many neurologists believe that the loss of neurons in the hippocampus may be a primary cause of the cognitive decay associated with aging.
Related: Feed your Newborn Neurons - Can Brain Exercises Prevent Mental Decline? - Excercize and Learning - No Sleep, No New Brain Cells
I must admit I like to think this idea would be work, but am a bit skeptical. I did switch to a job a few years back where I really just sat at my desk all day and would get tired. Previously I had walked around a fair amount going to see people… Someone suggested that getting some activity at lunch would help me feel more energized. It worked. If nothing else walk around at lunch.
Great comment on the post. Many of the other comments state categorically this cannot work. I wonder why they think they know what will work for everyone? I am skeptical but that is not the same thing as being sure this can’t work - I think being open to testing out ideas (especially ones that already have studies that claim they work) is a good thing. I would love to try it out myself (though given my skepticism I wouldn’t want to pay up to buy the equipment
).
Related: Regular Exercise Reduces Fatigue - Study, The energy expenditure of using a “walk-and-work” desk for office workers with obesity
Curious Cat Science and Engineering Blog curiouscat.com 2005-2006 powered by WordPress
Curious Cat Recreation Club Directory