NMDHS Marauders

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"Learn how to safely open a D cell, and remove its sweet, sweet chemical innards. D cells are favorable as their large size facilitates investigation, and they contain the greatest magnitude of useable chemicals."

Reducedmass.com is a science blog updated daily. We blog about stories from all walks of science if they strike us as interesting. The biggest weight is on making the stories fun and not the usual dry writing style associated with science.

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"Break down the oil slick, keep it off the shores: that's grounds for pumping toxic dispersant into the Gulf, say clean-up overseers. Susan Shaw shows evidence it's sparing some beaches only at devastating cost to the health of the deep sea. "

"Scientists in Russia have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago. The fruit was found in the banks of the Kolyma River in Siberia, a top site for people looking for mammoth bones."

Besides giving away to charity, most rich people waste their money on boring, frivolous things such as yachts, diamonds, and mansions. Here's a rich English guy that knows how to have fun. I hope he does build a bigger one. I would like to see a flying double-decker bus.

"Magnetohydrodynamics, or MHD, is a branch of the science of the dynamics of matter moving in an electromagnetic field, especially where currents established in the matter by induction modify the field, so that the field and dynamics equations are coupled."

Professor Walter Lewin's video lecture series on electromagnetism

The lifecycle of a G-type star, like the Sun. All original videos are copyrighted to NASA, NASA JPL/Caltech, and ESA.

Curious about planets on other stars?

"A passive crossover has no active filters as were used in the electronic crossover. It uses coils (inductors) and capacitors to cause a rolloff of the audio level."

While there are many articles elsewhere that discuss passive crossover design, not all follow a scientific approach. There are several 'off-the-wall' designs scattered throughout the Internet that are a case in point, and unless there is real science described in any article you see, it is best avoided.

Several decades ago scientists discovered that the Moon, long thought to have no atmosphere, actually does have an extremely thin exosphere.

Trailer for the documentary The Matter of Everything, which focuses on physicists at Fermilab.

"A team at the Carnegie Institution for Science subjected the material to pressures up to 1.4 million times atmospheric pressure at sea level, and temperatures up to 2,200C. They found that it pulls off the trick of changing its electrical properties without any shifting of shape - it can be an insulator or conductor depending just on temperature and pressure. Combined with computer simulations of just what was going on with the material's electrons, the group claim that the results show a new type of metallisation. "At high temperatures, the atoms in iron oxide crystals are arranged with the same structure as common table salt," said Ronald Cohen, a co-author of the study. "Just like table salt, iron oxide at ambient conditions is a good insulator-it does not conduct electricity.""