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Latest Blog Posts
22
FebCatching the Wave
On February 22, 1857, German physicist Heinrich Rudolf Hertz was born. He was a student and protégé of the great Hermann von Helmholtz. Hertz began his career as a university lecturer and quickly established himself as an accomplished speaker. In … Continue reading →
09
FebS’no Wonder
On February 9, 1865, American photographer and pioneering weather scientist Wilson Alwyn Bentley was born. After experiencing the Vermont winter snows for almost two decades, Bentley followed his passion for capturing the beauty of snowflakes for others to share. … Continue reading →
Tag Archives: GRACE
The GRACE Twins
On March 17, 2002, NASA launched the GRACE twins, two Gravity Recovery and Climate Experiment satellites. They flew about 220 km ( 137 mi ) apart in a polar orbit at 485 km (300 mi) above Earth, measuring regional … Continue reading
Posted in On This Day
Tagged Earth gravity fields, freshwater measurement, GRACE, groundwater, March 17, On This Day, The Roberta Bondar Foundation
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