madeline walther

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Falling Into The Sky And Other Tales Of Gravity

For most of us, gravity is the tug that pulls us home.<p>Every time we slip off a ladder or somersault into a swimming pool, we feel the planet pulling us back. Austrian stuntman Felix Baumgartner took this notion to a crazy extreme last year when he stepped off a platform attached to a helium balloon …

Massive Comet Could Hit Mars in 2014, and We Kind of Hope It Actually Does

2013 is still young and has yet to prove its mettle, but 2014 is already looking to do some astronomical upstaging — particularly with <b>Mars</b>. The Red …

Space

Government shutdown slows news of fusion breakthrough | Ars Technica

More energy produced than the fuel absorbed in fusion reaction?<p>The possibility of fusion-based power plants, long a dream of science and science …

Nuclear Energy

The Physics of Star Trek by Lawrence M Krauss – book review

Krauss's venture into the Star Trek world of antimatter drives, dilithium crystals and tractor beams is entirely serious<p>We are now reading Fermat's Last Theorem by Simon Singh, which Tim will review on Friday 2 August<p>Teleportation is technically demanding, especially when the object being …

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Newton's Universal Law of Gravitation

How Isaac Newton's encounter with that apple ended up helping send rockets into space<p>Newton's equation first appeared in the <i>Philosophiæ Naturalis Principia Mathematica</i>, July 1687. It describes why that apple fell from that tree in that orchard in Lincolnshire. Whether or not that apple actually …

Faster-Than-Light Drive

Instead of using rockets or thrusters, a craft equipped with warp drive would move by distorting space.<p>The warp drive proposed by Miguel Alcubierre would achieve faster-than-light speeds by distorting space-time. The device would generate a field of negative energy that would squeeze or stretch …

6.3-magnitude earthquake strikes Taiwan

Today’s Taiwan earthquake has been downgraded to 6.3 magnitude, and it occurred in a remote mountainous region. No reports of injuries or damages so …

Natural Disasters

Big Pic: Young Stars Brew In The Witch Head Nebula

A pretty witch in the sky.<p>Far away, near the knee of the hunter constellation Orion, a witch is stirring a cauldron of innocent babes. Young stars are forming in the Witch Head Nebula, seen here through NASA's Wide-Field Infrared Survey Explorer, or WISE.<p>Can you see the witch's profile? Or do you …

Concussion