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16K views · 463 reactions | On this day in 1890, Wyoming became the...
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Puerto Rico is home to the world’s largest single-aperture radio telescope: The Arecibo Observatory. Even more remarkable, it's built in a massive sinkhole. Aerial America: Puerto Rico & US Virgin Islands starts at 9 pm tonight. | Smithsonian Channel
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Puerto Rico is home to the world’s largest single-aperture radio teles…
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27 reactions | How much do you really need to spend on a High Brightness projector? Are there cost efficient options? Find out what Rivelino Vivekananda, founder of Creative Technical Production, has to say about choosing a larger or brighter projector. Whether for a corporate or large-scale event, the versatility of Epson High Brightness projectors can transform any space and suit your needs. | Epson | Facebook
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17K views · 377 reactions | ️ MOL: Manned Orbiting Laboratory This Cold War-era spy satellite was capable of detecting an item the size of a baseball—from space! Check it out in this quick clip from Atomic Age Declassified: Spies in Space. https://bitly.com/35lEgaJ | Smithsonian Channel | Facebook
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