Pictures
Questions
1. How often do you post pictures on social media?
2. How many pictures do you have on your phone?
3. What’s the last picture you took?
4. Do you ever take picture of your food?
5. Do like looking at old pictures?
6. Do you have any pictures of yourself as a kid?
7. Are you concerned about old pictures of you being on the internet?
8. “A picture is worth a thousand words” – do you agree?
Videos
Early portraits looked pretty grim.
A lot of old photos from the 19th and early 20th century are fraught with doom and gloom—and on the
A lot of old photos from the 19th and early 20th century are fraught with doom and gloom—and on the
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occasion the literal dead face. That led to the popular belief that people just did not smile in old photographs. The common explanation is due to the limited technology at the time to capture a smile. Exposure times were long and the thinking was it’s easier to hold a serious expression over a long period. Another theory included early photography being heavily influenced by painting (which meant no smiling).
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Category: History & Culture
What it took to collect these 54-million-year-old photons from a supermassive black hole.
On April 10, 2019, the team announced their results: They had successfully imaged the supermassive black
On April 10, 2019, the team announced their results: They had successfully imaged the supermassive black
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hole in the center of the galaxy m87, which is nearly 54 million light-years away from us. They were able to achieve unprecedented resolution using very long baseline interferometry, which combines the observations of multiple radio telescopes across the globe.
The team wanted to find out whether Einstein’s Theory of General Relativity holds up in the extreme environment of black holes, and the results do, in fact, seem to be consistent with the predictions. In the future, we may see more and sharper images of black holes as the team targets smaller wavelengths of light and recruits more telescopes. Eventually, they may include an orbiting space telescope.
The team wanted to find out whether Einstein’s Theory of General Relativity holds up in the extreme environment of black holes, and the results do, in fact, seem to be consistent with the predictions. In the future, we may see more and sharper images of black holes as the team targets smaller wavelengths of light and recruits more telescopes. Eventually, they may include an orbiting space telescope.
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Category: Science