Newton’s First Law
Posted by Lee Petersen | November 21, 2021
Newton’s First Law

Newton’s First Law of Motion can be summarized as: A body remains at rest or in uniform motion unless acted upon by a force. The first law is often called...

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Crevasse (Glacier)
Posted by Lee Petersen | August 27, 2021
Crevasse (Glacier)

A crevasse is a crack or fracture (in a glacier or ice sheet) caused by stress in the ice. The word crevasse can refer to fissures in other media as...

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Ice Crystals in R-Channels
Posted by Lee Petersen | September 5, 2020
Ice Crystals in R-Channels

Photos and brief description of ice crystal growth in an R-channel, or Röthlisberger style subglacial channel in winter - Castner Glacier - Alaska Range

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