Having swollen feet and ankles is nothing new to me.

If Fred pressed and held his feet to the ground, he would most likely lose them. If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. For the sake of estimation, we could assume the rest of the car, made of tarp and wood, weighs and additional 50 kilograms (110 pounds). If Fred pressed and held his feet to the ground, he would most likely lose them. Kyle Hill is a science communicator who specializes in finding the secret science in your favorite fandom. So all in all Fred must use his heels to stop an 865-kilogram (1910 pound) rockmobile. But that’s not all pressing down on the road Fred has to stop on. If they were one and a half meters long and 80 centimeters in diameter—like huge stone rolling pins—they would be about 360 kilograms (~795 pounds) each. Assuming for a moment that Fred’s feet are so callused as to be indestructible, slamming his feet into the rocky road at 25 miles per hour would bring the rockmobile to a stop in about 26 feet (8 meters). Friction’s Victory Over DaFeet The coefficient of friction—a ratio of the force friction provides and the weight pressing down on a surface—is the first thing we would have to find. Fred moves his wheels under his own power, but I wouldn’t guess he could go too fast.

Let’s assume that they are granite. So we have the weight, now we need the speed. The Physics of Fred Flintstone's Flaming Feet I hope that the father of the "modern Stone Age family" has thick skin, or else he is going to lose his legs. The rockmobile is neither a picture of aerodynamics or engineering genius, but it still has to be faster than simply running to make any sense at all as a vehicle. Now that we have all the numbers, all we have to do is plug them in. The best-case scenario for Fred’s feet is that they incur a mild “road rash”–the kind of abrasions and burns that motorcyclists and bikers get when they skid along the ground at speed. Kyle Hill is a science communicator who specializes in finding the secret science in your favorite fandom. Aside from co-hosting Al Jazeera America's science show, TechKnow, Hill is also a freelancer who has contributed to Wired, Nature Education, Popular Science, Slate, io9, Nautilus, and is a columnist for Skeptical Inquirer. Sadly, we know this would happen because of the unfortunate cases where people’s feet are run over by cars (study link includes some graphic images). When a material can’t handle the friction, the result is catastrophic heating and disintegration. With heels screeching and smoking, Fred famously uses his own feet to stop his forward momentum. I doubt that The Flintstones had the paved roads of today, so a first guess at the roughness of the road Fred is braking on would be a bit higher than the values we have on highways: around 0.7-0.9. Heavy loads encounter more friction, so next we have to estimate the weight of Fred’s famous rockmobile (replicas are for sale, by the way).

If they were one and a half meters long and 80 centimeters in diameter–like huge stone rolling pins–they would be about 360 kilograms (~795 pounds) each. Much like how your car’s brake pads work, Fred’s feet absorb all the frictional forces until the stones stop rolling. I doubt that The Flintstones had the paved roads of today, so a first guess at the roughness of the road Fred is braking on would be a bit higher than the values we have on highways: around 0.7-0.9. Images: Screenshot from Flintstones opening credits; Airplane landing gear from Airlinesafety.com. Fred himself is a hefty fellow, maybe 95 kilograms (210 pounds). The fastest human powered bicycle has been clocked at an astonishing 82 miles per hour. Let's put aside the fact that Fred Flintstone basically runs to work and therefore doesn't really need his wheels (or that he would need the quads of a god to get them [...]. If feet bother you that much... you should probably see a therapist now because you clearly have intimacy issues and body phobias.

Heavy loads encounter more friction, so next we have to estimate the weight of Fred’s famous rockmobile (replicas are for sale, by the way). To put it another way, it would be like standing on a belt sander, with an adolescent African elephant on your back. Much like how your car’s brake pads work, Fred’s feet absorb all the frictional forces until the stones stop rolling. I hope that the father of the "modern Stone Age family" has thick skin, or else he is going to lose his legs. As the cases of coronavirus continue occurring around the world , we are seeing an increase in people with “Flintstone” feet and I believe it is also a consequence of the pandemic. Aside from co-hosting Al Jazeera America's science show, TechKnow, Hill is also a freelancer who has contributed to Wired, Nature Education, Popular Science, Slate, io9, Nautilus, and is a columnist for Skeptical Inquirer. I’ll give Fred the benefit of the doubt and say his top speed is 25 miles per hour. The worst-case is much more likely. I like simple to make costumes because I normally put one together last minute. In all likelihood, Fred Flintstone’s feet after braking would look like airplane landing gear when it can’t handle the friction: If Fred decides to take his whole family out for a brontosaurus burger and a drive-in movie, the problem of feet-destroying friction only gets worse because the rockmobile would be significantly heavier. As an engineer, I have no idea how a forward-moving car keeps a rear wheel on that has no backstop.

Assuming for a moment that Fred’s feet are so callused as to be indestructible, slamming his feet into the rocky road at 25 miles per hour would bring the rockmobile to a stop in about 26 feet (8 meters). The views expressed are those of the author(s) and are not necessarily those of Scientific American. Fred himself is a hefty fellow, maybe 95 kilograms (210 pounds). Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. Search free fred flintstone Ringtones on Zedge and personalize your phone to suit you. When a material can’t handle the friction, the result is catastrophic heating and disintegration.

(If you want to see the full calculation for stopping distance, I did the same for Batman and the Joker sliding on the floor here.). On a list of those unusable materials is certainly human skin.

But what if Fred’s feet weren’t indestructible? Fred himself is a hefty fellow, maybe 95 kilograms (210 pounds). There is no way a chubby caveman could get a hunk of granite going that fast with only his legs, and even average highway speeds seem out of the question. Fred moves his wheels under his own power, but I wouldn’t guess he could go too fast. 6 hours ago — Chelsea Harvey and E&E News, 6 hours ago — Matthew W. Johnson and David B. Yaden | Opinion, 10 hours ago — Jeffery DelViscio and Timothy Weaver. The coefficient of friction—a ratio of the force friction provides and the weight pressing down on a surface—is the first thing we would have to find. Fred moves his wheels under his own power, but I wouldn’t guess he could go too fast. As an engineer, I have no idea how a forward-moving car keeps a rear wheel on that has no backstop. If Fred pressed and held his feet to the ground, he would most likely lose them. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. Let’s put aside the fact that Fred Flintstone basically runs to work and therefore doesn’t really need his wheels (or that he would need the quads of a god to get them moving). The worst-case is much more likely. (Note that this is much lighter than cars today due to their metal frames, engines, and other components.). It has been studied for human skin [PDF], but what we are really looking for is the roughness of the road; how much resistance Fred’s feet would meet.

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