Winter Journey Along the Yukon River
Ned Rozell and two friends set off on a 100-mile journey through the frozen Yukon River.
Science
The Physics of Slapshots and Mid-Ice Collisions
When two National Hockey League hockey players collide, their pads and body tissues can absorb enough energy to power a 100-watt light bulb for a minute and a half. During the 60 minutes of a hockey game, players can burn 6,000 calories and lose up to 15 pounds.
Keeping the Carbon in Alaska Forests
A scientist has an idea for reducing global carbon-dioxide emissions—fight Alaska forest fires more aggressively.
Rocket on the Chilled Rail at Poker Flat
The launch window for this year’s winter experiment at Poker Flat Research Range 30 miles north of Fairbanks opens Sunday, January 26, at 4 a.m. AKST.
Northern News from a Massive Conference
More than 25,000 scientists traveled to San Francisco for the week-long conference to present their research on classic hard-science subjects and a few surprises, including the migration of creatures ranging from Alaska earthworms to humans threatened by rising sea level.
The Physics of Forty Below
The thermometer reads 40 below zero, the only point at which the Fahrenheit and Celsius scales agree. The red liquid within his thermometer is alcohol; mercury freezes at 38 below.