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Discussion Starter · #1 ·
Some of my previous posts have tried to bring a scientific slant to single-speeding eg. http://forums.mtbr.com/showthread.php?t=257064

And while the scientific community have widely condemned my efforts I feel my latest research paper will reverse that trend.

AIM To investigate the coefficient of friction between frozen H2O layered asphalt and a pair of Nobby Nics.

Method A suitable corner was choosen, offering a good fast entry speed as well as a slick layer of "black ice".

Equipment Nice shiny silver Single-Speed (32-16 gearing) and an ipod shuffle

Subject 39 yr old male (now known as "Why don't you act your age!")

Control The previous 14 miles of the test loop consisted of no corners with "black ice", thus lulling the subject into a false sense of security. The introduction therefore of an icy intersection was one hell of a suprise.

Results Upon turning right into corner both front and rear tyre, which had previously given an estimated 300 miles of unwavering, unfaltering grip,....did both waver and falter.The subject's obvious reaction was to unclip and use the right foot to steady and guide the bike. As a corollary it should be noted that a Specialized BG Pro has even less grip than a pair of Schwalbes!

Final Result With a nice shiny silver bike exiting stage left and a skinny ankle exiting to the right, the tensile strength of lower tibia and fibula were tested. Diagnostic radiography confirmed an angular fracture to the fibula. The tibia was found to have, and here I quote the A&E registrar "Ooo, you've gone and cracked the tibia too...no walking on that for 6 weeks".

DiscussionThe above experiment was a mechanical engineering/fluid dynamics investigation, but in the joyful overlap of the scientific disciplines it also raises an interesting psychology question. That is how does a 39 yr old male with a relatively low pain threshold, manage to cycle 4 miles home after the experiment was concluded?

Thanks to York District Hospital A&E and Orthopaedics, my lovely wife and the little old lady who carried the equipment to the side of the road following the experiment.
 

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frozen water is no longer considered a fluid for the purposes of scientific experimentation :nono:
(unless by "fluid dynamics" you were inferring the air pressure switch inside the tires may be at fault?) ;)

this IS a good warning not to put the foot down while losing traction though, hrmm, I always do that, now you're making me nervous.

heal well wdyaya!
 

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Get well. Like driver bob... not happy to hear your plight, but that post was awesome. I suppose there's nothing to do but laugh about it now.

PS -- I think shaving your legs might've made all the difference in this event
 

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First off....get healed up properly and speedy! I wish you well!

Second: that post is FUNNY!!! Very original and I thought you were serious there for a minute!! :D

Careful out there kids!
 

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awesome post. as it turns out, friction is more fun than the lack there of... if you would have kept the normal force higher, you may have been able to avoid this situation. studded tires might have done the trick too... =P

get better... and get back out there to test some other theories!
 

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science can be a *****, especially when it involves surprse experiments with black ice. Last winter on my commute I ended up on my back in the middle of an intersection studying whether a car can slide to a stop on frozen H2O before it crushes a cyclist. Fortunately frictioin just barely favoured both the driver and myself and we escaped physical harm, but the "cycological" scars remain.

Get well
 

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Discussion Starter · #12 ·
I thank you all for the get well messages. It really is appreciated.

The experiment was carried out 3 weeks ago now, and in 2 days time I will be back to see the Specialist. What I really want for xmas is a 'walking' cast.

My urge to experiment has not faded however, as I am currently running a single-blind placebo controlled study in pharmacology.

The experiment is titled "An investigation and comparison into the analgesic effects of Paracetemol vs Ibuprofen vs Cabernet Sauvignon"

At the moment I am having trouble with the 'Ethics Committee', who claim I am ignoring the pharmecuticals and am concentrating too strongly on the Cabernet....
 

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amaurosis fugax said:
DiscussionThe above experiment was a mechanical engineering/fluid dynamics investigation, but in the joyful overlap of the scientific disciplines it also raises an interesting psychology question. That is how does a 39 yr old male with a relatively low pain threshold, manage to cycle 4 miles home after the experiment was concluded?
Psychology shmycology. Adrenaline FTW. I managed to scale a 7' 6" fence (flat side) one armed and unassisted after I snapped my ulna (whilst trying to jump another fence :rolleyes: ) and my left wrist was dangling at a very hillarious angle (I'm only 5'6").
 

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byknuts said:
frozen water is no longer considered a fluid for the purposes of scientific experimentation :nono:
(unless by "fluid dynamics" you were inferring the air pressure switch inside the tires may be at fault?) ;)
His obvious scientific prowess is that he WAS indeed studying fluid dynamics. That of the liquid water which is found in the interstitial space between the tire and the frozen water. This water is created by the pressure of his knobbies and his exceptional cornering technique. Once of the reasons ice at extemely cold tempeatures is far grippier than at just sub freezing temperatures. Though the author didn't elaborate, I'm sure further fluid dynamic studies were conducted post experiment utilizing distilled spririts to wash down the Percodan. :thumbsup:
 

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Excellent. Feel better- I ate shite a couple times in the last snow storm in my parts.

For dull and achey pain, can I suggest beer? If the leg is really putting you through the ringer, switch to straight whiskey.
 

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amaurosis fugax said:
The experiment is titled "An investigation and comparison into the analgesic effects of Paracetemol vs Ibuprofen vs Cabernet Sauvignon"

At the moment I am having trouble with the 'Ethics Committee', who claim I am ignoring the pharmecuticals and am concentrating too strongly on the Cabernet....
Get around the ethics commitee by consuming the pharmacuticals with the alcohol.

I always sleep like a baby when I wash down the ibuprofen with a malt whisky :D
 

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Been there, though mine was with hard boots on a free carve snowboard:




They ended up putting a rod and several screws in there to keep everything together. The good news was, that allowed me have a removable cast. My greatest joy during recovery was coming home, laying down on my couch, and taking the cast off and putting my leg up some pillows; greatest feeling ever.
 

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Heh, that cardboard box was just the "splint" the resort sent me to the ER in. Honestly, I would have been better off just holding everything in place with my hands :rolleyes: . My leg started out straight when I was put in the ambulance, but had shifted over by the time we got to the hospital.

The removable cast they finally put in me, after a series of splints, was great.

What made my day was a park rat was in the clinic when I came in with a sore shoulder. He was moaning and groaning, and generally being whiny, while I'm just chatting with Ski Patrol and my friend. However, after the scream and gurgling as Patrol removed my boot (race fit snowboard hard boots, two sizes smaller than my foot), dude did not make another sound the rest of the time I was there.
 
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