To be fair, you may not have known they existed because they didn't. At least not this style/configuration, although there have been other attempts at it.
They must be safe, they only do 12 mph(19.3 kph). Ever walk in to a door, wall, or other stationary object? Of course you have, everybody has, and it hurt, didn't it. Now how fast do you think you were moving?
Wiki says,
Quote:
|
In the absence of significant external factors, humans tend to walk at about 1.4 m/s (5.0 km/h; 3.1 mph).[1][2][3] Although humans are capable of walking at speeds upwards of 2.5 m/s (9.0 km/h; 5.6 mph),
|
Yeah yeah, Usain Bolt did 44.7 km/h (14.4m/s, 27.78 mph), but if he'd run into a telephone pole, fugetaboutit. Even if you manage to avoid stationary objects, and god forbid, moving objects
, there's also the pavement crack/pothole/stick trip-up. Calculating the skin loss vs speed would take a super computer because of all the variables.
Maybe NASA would do it since tw told me they aren't doing science anymore.
I figure that $700 price tag breaks down to the inventor(patent holder) gets $10, and the manufacturer gets $10. Figure another $10 for the various transportation ships and trucks. The importer/wholesaler gets $20, and $50 to the retailer, because in this case it's a high end outfit. that leaves $599.95 for liability lawyers and Insurance salesmen.