Do We Remember 9/11 Accurately?

For decades, psychologists have thought that traumatic events become imprinted into the brain. But studies have shown that these memories are not as accurate as we may believe them to be.

 

What's the Latest Development?


Just days after the 9/11 attacks, neuroscientist John Gabrieli began researching how people recalled the event to better understand how memory of traumatic events change over time. "We asked about 3,000 people for specific information about their experiences on 9/11, such as details of the attacks, details about how they learned about the attacks, where they were, who they were with and what emotions they felt. Then, we asked the same questions to the same people about a year later and again about three years later; we are now doing a 10-year follow-up."

What's the Big Idea?

Gabrieli’s research revealed that, while traumatic events may create deep impressions in our memory, the accuracy of our recollections decrease over time. "When people have a very emotional experience, they feel they have a 'flashbulb memory' that is highly accurate and detailed, and one that they will never forget," said Gabrieli. But the subjects in his research steadily recalled events less accurately as the years went by. More generally, the research showed the importance of emotion in creating memory and that emotional reactions are relatively difficult to remember."

Elon Musk's SpaceX approved to launch 7,518 Starlink satellites into orbit

SpaceX plans to launch about 12,000 internet-providing satellites into orbit over the next six years.

Technology & Innovation
  • SpaceX plans to launch 1,600 satellites over the next few years, and to complete its full network over the next six.
  • Blanketing the globe with wireless internet-providing satellites could have big implications for financial institutions and people in rural areas.
  • Some are concerned about the proliferation of space debris in Earth's orbit.
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Russian reporters discover 101 'tortured' whales jammed in offshore pens

Protected animals are feared to be headed for the black market.

(VL.ru)
Politics & Current Affairs
  • Russian news network discovers 101 black-market whales.
  • Orcas and belugas are seen crammed into tiny pens.
  • Marine parks continue to create a high-price demand for illegal captures.
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How to make a black hole

Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.

Videos
  • There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
  • CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
  • Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
  • Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.