Parth

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How Gravity Makes Things Fall

FYI: If I Fell Through Earth, What Would Happen In The Center?

Just getting to the center of the Earth and surviving is impossible. The Earth's core is about 9,000°F—as hot as the sun's surface—and would instantly roast anyone who found himself there. Then there's the pressure, which can reach roughly three million times that on the Earth's surface and would …

APOD: Alnitak, Alnilam, Mintaka (2013 Dec 12) Image Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors) http://apod.nasa.gov/apod/ap131212.html Explanation: Alnitak, Alnilam, and Mintaka, are the bright bluish stars from east to west (lower right to upper left) along the diagonal in this gorgeous cosmic vista. Otherwise known as the Belt of Orion, these three blue supergiant stars are hotter and much more massive than the Sun. They lie about 1,500 light-years away, born of Orion's well-studied interstellar clouds. In fact, clouds of gas and dust adrift in this region have intriguing and some surprisingly familiar shapes, including the dark Horsehead Nebula and Flame Nebula near Alnitak at the lower right. The famous Orion Nebula itself is off the right edge of this colorful star field. The well-framed, wide-field telescopic image spans about 4 degrees on the sky. http://www.facebook.com/DeepSkyColors http://www.deepskycolors.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131212 #APOD

The more inept you are the smarter you think you are

Psychologists have shown humans are poor judges of their own abilities, from sense of humour to grammar. Those worst at it are the worst judges of all.<p>You're pretty smart right? Clever, and funny too. Of course you are, just like me. But wouldn't it be terrible if we were mistaken? Psychologists …

Psychology

Stonehenge: Origin of Stones Discovered

Geologists in Wales have identified the source of stones used to build Stonehenge, they told local publication the Western Mail on Tuesday, Nov. 19. …

ScienceCasts: What Happened to Mars? A Planetary Mystery

Video: Can stress actually kill you?

Can we die from too much stress?<p>Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky …

Spectacular Time-Lapse Video of the Bright Milky Way

While studying at the University of Hawaii, astronomy graduate student and photographer Sean Goebel, aka geekyrocketguy, took the opportunity to create a mesmerizing time-lapse video of the spectacular night sky over the Mauna Kea Observatories. The video, featuring a sequence of 7 nights (“three …

Time-lapse Photography

Exclusive: Bill Nye Explains Jupiter's Great Red Spot In Classic Bill Nye Style

"It's huuuge!"<p>NASA's Juno spacecraft will swing by Earth today for a "gravitational slingshot" that will send it toward Jupiter at 165,000 mph. To celebrate this triumph of science, Bill Nye is hosting "Why with Nye," an eight-part YouTube series that will explain the Juno mission and the some of …

Bill Nye

Gorgeous Nightscapes Illuminated by Bright Stars and Galaxies

In this series, astronomy photographer Tommy Richardsen invites his viewers to sit back and enjoy these captivating night landscapes filled with the magical wonder of the universe. The images feature billions of twinkling stars overhead naturally mixing together with a variety of soothing colors …

Northern Lights

New Zealand Town Powers Down for Spectacular Astrophotography

While city dwellers look up at the night sky and are left staring at a nearly blank atmosphere, occasionally featuring the moving lights of a distant airplane flying by, the Earth and Sky Mt. John Observatory in New Zealand gives stargazers some truly spectacular views of celestial bodies. Located …

New Zealand

FYI: Is It Possible To Control Our Dreams?

Yes, but only with practice. The best place to start is right before bed. Deirdre Barrett, a professor of psychology at Harvard University and author of <i>The Committee of Sleep</i>, asked 76 college students to choose a problem (where to take a vacation; how to arrange their furniture) and focus on it …

How Special Relativity Makes Magnets Work

The Big Bang May Not Have Spawned The Universe After All

Our universe might actually be the result of the collapse of a four-dimensional star.<p>According to a new paper posted on Arxiv, the Big Bang may not have been what we think it is. In fact, there may have been no Big Bang at all--our universe may have come from an entirely different source.<p>The Big …

Dreamy Milky Way Photography

The universe is a big place. So big that it could give the most priggish person a more human, down-to-earth personality. We're such tiny beings that …

Universe

Robotic surgery is growing, but complications might be underreported

Advertisement<p>0 Comments<p>Credit: Intuitive Surgical<p>Robots can make better surgeons than humans, especially when it comes to accessing hard-to-reach …

An Adorable Animation Of The Sun Destroying Earth

Plus some other fun facts about the solar system!<p>Hello, tiny human! If you needed a quick reminder of how small you are in the universe, just check out this video, created by designer Philipp Dettmer. It'll give you the basic run-down of the solar system: how many moons each planet has, how far …

Sublime Images of the Brilliant Night Sky Using Long Exposures and Image Composite

“If the stars should appear one night in a thousand years, how would men believe and adore; and preserve for many generations the remembrance of the …

Ralph Waldo Emerson

7 Reasons Why Coffee Is Good For You

Coffee isn't just warm and energizing, it may also be extremely good for you.<p>In recent years and decades, scientists have studied the effects of coffee on various aspects of health and their results have been nothing short of amazing.<p>Here are 7 reasons why coffee may actually be one of the …

NASA Finds A Pink Planet That Challenges Current Theories

About 57 light years from Earth, astronomers have discovered a large new planet, colored a deep magenta. It’s the second planet whose color has been directly observed by astronomers, the first being HD 189733b. That alone would make this find noteworthy. But equally noteworthy is the fact that the …

Google patents 'pay-per-gaze' eye-tracking that could measure emotional response to real-world ads

Advertisers spend heaps of cash on branding, bannering, and product-placing. But does anyone really look at those ads? Google could be betting that advertisers will pay to know whether consumers are actually looking at their billboards, magazine spreads, and online ads. The company was just granted …

How We Remember To Remember

The way our brain handles remembering to remember something, called prospective memory, has been somewhat of a mystery to scientists, until now.<p>"Remind me not to forget…" I often say to my roommate. My phone charger. The sandwich I made to take to work. The bill I need to put in the mail.<p>The way …

New Clues for How to Remember Dreams

A new study suggests that there are distinct differences in brain function between people who remember their dreams and those who don't.<p>This morning, I woke up with a very strong memory of staging a political coup in my sleep. Why I happened to remember my dream so vividly when I woke up, it's hard …

A Blind Robot That Navigates By Touch

Introducing: Shrewbot.<p>We're doing two things here: using robots to test ideas about how brains work and using biology to develop new robots.<p>Shrewbot is the size of a small dog, can move its head around, runs on batteries, and has omnidirectional wheels—and no eyes. Its only sense is touch, from its …

The flipping hexapod robot that can climb stairs and jump obstacles

A robot that walks on six legs, mimicking the mobility of animals, has been unveiled in Pennsylvania.<p>The six-legged robot is not bound by the obstacles that have restricted its kind for years.<p>University of Pennsylvania engineering professor Daniel Koditschek and fifth-year Ph.D. student Aaron …

A century-long debate: are 'intelligent' people less likely to hold religious beliefs?

Over most of the past century, researchers have been trying to determine whether there's any link between religion and intelligence. The studies haven't all come to the same conclusion, but a group of researchers led from the University of Rochester decided to look at a large number of them …

Why Do Stars Twinkle?

Stars appear to twinkle, planets don’t. Here's why.<p>Did you know you can distinguish between stars and planets in the sky?<p>Stars twinkle, planets don't.<p>Okay, that's not actually correct. The stars, planets, even the sun and moon twinkle, all in varying amounts. Anything outside the atmosphere is …