Intermediate Word:  gunnite  (a) blueing for guns  (b) sprayed cement  (c) oily rust-preventive for guns  (d) type of smokeless gunpowder
Difficult Word: - dhoti  (a) Southeast-Asian wild dog  (b) fakir's loincloth  (c) seller of religious talismans  (d) Vietnamese shrine 

Antarctic Living: A Space House for an Icy Land - Space.com  German scientists are adapting a habitat designed by the European Space Agency (ESA) to replace, in 2007, the shifting, disappearing and aging Neumayer II Research Station. ESA's original designs for a SpaceHouse-based Neumayer III call for a tough outer shell of extremely lightweight carbon fiber reinforced plastic (CFRP), used in spacecraft solar arrays and antennas, as opposed to the traditional steel or aluminum. 
Glimpse at Swollen Stars Hint at Earth's Demise - Space.com  Mira stars have nearly exhausted the hydrogen that powers their thermonuclear furnaces. Each is swelled to a diameter that is larger than the orbit of our home planet. The aging stars pulsate, expanding and contracting every year or so. When our Sun begins to pulsate, the surface temperature on Earth will periodically climb to 5,400 degrees Fahrenheit (3,000C), said Guy Perrin, a Paris Observatory researcher who led the new study. "But this is in a few billion years from now."

Researchers Make An Oscillator So Small It Might Weigh A Single Atom - SpaceDaily  Left:  Scanning electron microscope photo of a single carbon nanotube suspended over a silicon trench, and a schematic drawing of the device as seen in cross-section. Below, a diagram of the circuit. Copyright Cornell University  Using a carbon nanotube, Cornell University researchers have produced a tiny electromechanical oscillator that might be capable of weighing a single atom. The device, perhaps the smallest of its kind ever produced, can be tuned across a wide range of radio frequencies, and one day might replace bulky power-hungry elements in electronic circuits.Experimenting with various sizes and lengths of tubes, the researchers have made oscillators that tune over a range from 3 to 200 megaHertz (millions of cycles per second). Such a tunable oscillator could be used as a detector in a radio-frequency device such as a cellular phone, which must constantly change its operating frequency to avoid conflicts with other phones.

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