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Latest Blog Posts
08
MayWorld Migratory Bird Day
The Second Weekends of May and October are events observed twice each year as World Migratory Bird Day to focus world attention on the need to protect migratory bird populations, their habitats, and their international flyways. Through exchanges of … Continue reading →
22
AprEarth Day
April 22, Earth Day, is celebrated around the world as tens of millions of people make time to attend their environment. Thousands of governments – from local to regional to state, provincial or federal – plan awareness campaigns and activities … Continue reading →
Tag Archives: Hermann von Helmholtz
Giant Footsteps
On August 31, 1821, German physician and physicist Hermann Ludwig Ferdinand von Helmholtz was born. He became a universal scholar – natural science, medicine, physiology, physics, chemistry, music, acoustics, electromagnetics, meteorology, and their related technologies. He explored current theories, performed … Continue reading
Posted in On This Day
Tagged August 31, Hermann Ludwig Ferdinand von Helmholtz, Hermann von Helmholtz, On This Day, ophthalmometer, ophthalmoscope, The Roberta Bondar Foundation
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