Arjan Gelling Biography (For the piece we published three years ago on Arjan Gelling.)
Mike Ryan of the Air Force kicks hard to finish third. Another pretty good runner, Doug Brown, can manage only 14th. How miserable were those conditions? The course, described as “more than six miles” is a trail scrapped from the snow. 108 runners brave the windy 20 degree weather at the 4300 foot altitude. Hot chocolate for everyone.
'This from another reader:
I'm reminded that I was once flying at an altitude of 100 feet over the south slope of a mountain, but at an elevation of 10,000 feet. Indeed pilots generally refer to altitude as how high they are above the surface of the earth so that they do not crash into mountain sides. So do altimeters measure altitude by a radar like device or are they set and adjusted to barometric pressure?
Google says, "Conventional aircraft altimeters work by measuring the atmospheric pressure at the airplane's flight altitude and comparing it to a preset pressure value. Air pressure decreases by about one-inch mercury for each 1,000-foot altitude increase. ... A higher static pressure causes the wafers to compress.May 11, 2018
I would certainly hope that preset pressure value is accurate and takes in pressure differentials due to weather changes. I guess when in doubt the pilot can always look out the window.
Another place where altitude and elevation can get one in trouble is parachuting. I read once that a bunch of skydivers parachuted at the South Pole but forgot to take into account that the South Pole is at a significantly high altitude, such that their standard parachutes were not big enough to slow down their descent in that thinner air and they hit the ground much harder than expected.
The Journey of the African American Athlete this 6 minute clip from youtube records some of those events we have just covered as well as the resulting actions taken at Mexico City.