How To Delete Your Digital Life

Wiping away your digital life means getting rid of the traces you've left – the mistakes you made, the embarrassing photos, the unwise comments, the flawed social media profiles where you've left too much visible. But it's not easy.

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Age, repeated injury do not affect regeneration

Scientists have been wrong for 250 years about a fundamental aspect of tissue regeneration, according to a University of Dayton biologist who says his recent discovery is good news for humans.

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Via: PhysOrg

Why People Avoid the Truth About Themselves

Knowledge may be power, but when it comes to self-knowledge, ignorance is bliss.

The trick is to know which information to avoid and which to seek out. But we can't know this without knowing what the information is. But once you've learnt the information you can't unlearn it. It's a problem.

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Via: PsyBlog

14 Serial Killers Who Were Never Captured, In Order Of How Frightening Their Media-Created Names Are

14. The Babysitter

13. The Moonlight Murderer

12. Jack the Stripper

11. Bible John

10. The Rainbow Maniac

9. The Grim Sleeper

8. The Zodiac Killer

7. Beer Man

6. The Doodler

5. Jack the Ripper

4. Axeman of New Orleans

3. The Mad Butcher of Kingsbury Run

2. Servant Girl Annihilator

1. Charlie Chop-Off

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Via: The Awl

Do Pterosaurs Still Exist on Papua New Guinea?

Pterosaurs are ferocious flying dinosaurs thought to have been extinct for 65 million years. However, there is physical evidence of gigantic nesting sites in some of the mountainous cliff areas of Papua New Guinea. What's more the natives there have been reported as being fearful of animals that fit their description and given eyewitness accounts. The animals were described as being large in diameter, with bat-like wings connecting to an elongated beak. There were reports of razor sharp teeth and claws and a lengthy whip-like tail with a split or flange at the end.

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Via: Environmental Graffiti

Weird Camera Effects

We can never know the world around us as it really is; we can only know it as our brains perceive it. The process of interpreting the signals that come to our eyes is quite complicated, but it works well for us most of the time. Optical illusions occur when our minds interpret visual signals incorrectly. When we began to record images outside our brains, we added a mechanical layer of interpretation that can also go slightly wrong. Then we started using several different methods of recording visual images, and the possibility of incorrect interpretation multiplied, leaving us with some weird camera effects.

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Via: Mental Floss

7 Man-Made Architectural Wonders of the Ancient World

The Colosseum, the Great Pyramid of Giza, the Great Wall of China and Machu Picchu are world-famous ancient architectural wonders, but they’re hardly the only man-made structures worthy of effusive praise, enthusiastic photography and economy-stimulating tourism. These 7 historical sites, ranging from an incredibly deep well in India to the cradle of Mayan civilization – complete with the world’s first highway system – are often overlooked, but represent some of the most jaw-dropping and mysterious engineering feats from ancient times to the medieval period.

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Via: Weburbanist.com