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redbull:

The world is your playground. Get after it. #givesyouwings

redbull:

Do what you love and don’t look back. #givesyouwings Click for the full video.

redbull:

The world is your playground. Get after it. #givesyouwings

thatscienceguy:

This is the AWWA Sky Whale, a concept for the next generation of aircraft. 

It is supposed to incorporate next gen technology and materials to create a ‘greener’ aircraft, despite having three stories of passenger seating and a fuselage twice as wide as the largest planes today.

It’s engines will be hybrid, working off solar power as well as jet fuel. it has mechanisms to reduce drag, and thanks to lighter materials the entire airplane will be lighter despite its size. The jets will even be able to rotate up and down (like a harrier jet) to reduce the size of the needed runway.

The plane will be able to seat a total of 755 passengers and will incorporate all the luxuries you would expect to go with a plane that looks as amazing as that.

christinetheastrophysicist:

Stephen Hawking and the Black Hole Firewall Phenomenon
Title: Information Preservation and Weather Forecasting for Black Holes
Authors: S. Hawking
Stephen Hawking recently published a summary of a talk that he gave back in August at a Kavli Institute of Theoretical Physics Rapid Response Workshop on the topic of black holes. Hawking is not saying that black holes do not exist, like the title of some articles claim, but that some characteristics of black holes may be different than what we previously thought.
Hawking discusses a proposed resolution to the information paradox, called a black hole firewall. This firewall is a region of high-energy radiation at the horizon of the black hole. He continues by describing a few scenarios that object the presence of firewalls:
The location of the event horizon is not determined.
The energy momentum tensor is regular. The energy momentum tensor describes the densities of energy and momentum in spacetime.
Quantum gravity, an explanation for gravity according to the principles of quantum mechanics, is CPT invariant. This means that quantum gravity does not change under any charge (C), parity (P), or time (T) transformations.
Due to these objections, and a few others, Hawking states that event horizons and firewalls would not exist. An event horizon is the point where light can not escape from a black hole’s gravity. So if there are no event horizons, then what we define a black hole to be is not technically correct. But Hawking suggests that an apparent horizon, a horizon that is observer dependent, could exist in a long-term stable, but ultimately unstable, state.
During its existence, Hawking suggests that information could chaotically come back over the apparent horizon. He compares this to weather forecasting on Earth: we can’t predict the weather more than a few days in advanced.
Image by Andy Potts.

christinetheastrophysicist:

Stephen Hawking and the Black Hole Firewall Phenomenon

Stephen Hawking recently published a summary of a talk that he gave back in August at a Kavli Institute of Theoretical Physics Rapid Response Workshop on the topic of black holes. Hawking is not saying that black holes do not exist, like the title of some articles claim, but that some characteristics of black holes may be different than what we previously thought.

Hawking discusses a proposed resolution to the information paradox, called a black hole firewall. This firewall is a region of high-energy radiation at the horizon of the black hole. He continues by describing a few scenarios that object the presence of firewalls:

  • The location of the event horizon is not determined.
  • The energy momentum tensor is regular. The energy momentum tensor describes the densities of energy and momentum in spacetime.
  • Quantum gravity, an explanation for gravity according to the principles of quantum mechanics, is CPT invariant. This means that quantum gravity does not change under any charge (C), parity (P), or time (T) transformations.

Due to these objections, and a few others, Hawking states that event horizons and firewalls would not exist. An event horizon is the point where light can not escape from a black hole’s gravity. So if there are no event horizons, then what we define a black hole to be is not technically correct. But Hawking suggests that an apparent horizon, a horizon that is observer dependent, could exist in a long-term stable, but ultimately unstable, state.

During its existence, Hawking suggests that information could chaotically come back over the apparent horizon. He compares this to weather forecasting on Earth: we can’t predict the weather more than a few days in advanced.

Image by Andy Potts.

physicsphysics:

transagenda:

codeawayhaley:

According to the laws of physics, a planet in the shape of a doughnut (toroid) could exist. Physicist Anders Sandberg says that such planets would have very short nights and days, an arid outer equator, twilight polar regions, moons in strange orbits and regions with very different gravity and seasons.
Read more: http://bit.ly/1kPLXGT via io9

petition to turn the earth into a fucking doughnut

We’re on board.

physicsphysics:

transagenda:

codeawayhaley:

According to the laws of physics, a planet in the shape of a doughnut (toroid) could exist. Physicist Anders Sandberg says that such planets would have very short nights and days, an arid outer equator, twilight polar regions, moons in strange orbits and regions with very different gravity and seasons.

Read more: http://bit.ly/1kPLXGT via io9

petition to turn the earth into a fucking doughnut

We’re on board.

thisistheverge:

Massive Carl Sagan archive posted by Library of Congress Nearly two years ago, the Library of Congress acquired some 800 boxes of books, letters, notes, videos, and other items that belonged to late American astronomer and author Carl Sagan. Now much that massive collection — which was donated by Family Guy creator Seth MacFarlane — can be found online as part of a new online archive. Librarians have split it up into three sections encompassing models of the cosmos, life on other worlds, and Sagan’s life and works. The originals of all those items were put up for public display last November, though required visiting the library in person.

thisistheverge:

Massive Carl Sagan archive posted by Library of Congress
Nearly two years ago, the Library of Congress acquired some 800 boxes of books, letters, notes, videos, and other items that belonged to late American astronomer and author Carl Sagan. Now much that massive collection — which was donated by Family Guy creator Seth MacFarlane — can be found online as part of a new online archive. Librarians have split it up into three sections encompassing models of the cosmos, life on other worlds, and Sagan’s life and works. The originals of all those items were put up for public display last November, though required visiting the library in person.