J-2X engine continues to set standards
(Phys.org) -- Testing of the next-generation J-2X rocket engine continues to set standards. Last fall, the engine attained 100 percent power in just its fourth test and became the fastest U.S. rocket engine ...
Space & Earth / Space Exploration
May 28, 2012 |
4.5 / 5 (2) |
0
Evidence of a new phase in liquid hydrogen
(PhysOrg.com) -- We like to think that we’ve got hydrogen, one of the most basic of elements, figured out. However, hydrogen can still surprise, especially once scientists start probing its properties on the ...
Feb 25, 2010 |
4.8 / 5 (28) |
5
|
Water still has a few secrets to tell
(PhysOrg.com) -- We are used to thinking of water as a substance with relatively few secrets left. Its basic structure has been studied by high school students for decades, and water is considered essential ...
Jan 21, 2010 |
3.7 / 5 (23) |
14
|
Why Does Water Expand When it Cools? A New Explanation
(PhysOrg.com) -- Most of us, when we take our first science classes, learn that when things cool down, they shrink. (When they heat up, we learn, they usually expand.) However, water seems to be the exception ...
Jul 17, 2009 |
4.2 / 5 (39) |
16
First comet found with ocean-like water: New clues to creation of Earth's oceans
(PhysOrg.com) -- New evidence supports the theory that comets delivered a significant portion of Earth's oceans, which scientists believe formed about 8 million years after the planet itself.
Space & Earth / Space Exploration
Oct 05, 2011 |
4.8 / 5 (18) |
120
|
How wet is water's surface? Some water molecules split the difference between gas and liquid
(PhysOrg.com) -- Air and water meet over most of the earth's surface, but exactly where one ends and the other begins turns out to be a surprisingly subtle question.
Jun 08, 2011 |
5 / 5 (3) |
2
|
Catalyst could power homes on a bottle of water, produce hydrogen on-site (w/ Video)
(PhysOrg.com) -- With one bottle of drinking water and four hours of sunlight, MIT chemist Dan Nocera claims that he can produce 30 KWh of electricity, which is enough to power an entire household in the developing ...
Technology / Energy & Green Tech
Mar 05, 2010 |
4.3 / 5 (62) |
66
|
Spaceplane that takes off from airport runway could be ready in 10 years
(PhysOrg.com) -- An unpiloted, air-breathing spaceplane that takes off from an airport runway, carries up to 30 passengers, and costs less than one-tenth to launch into space compared to a conventional rocket ...
Space & Earth / Space Exploration
Sep 21, 2010 |
4.6 / 5 (28) |
28
|
Under pressure, sodium and hydrogen could undergo a metamorphosis, emerging as a superconductor
(PhysOrg.com) -- In the search for superconductors, finding ways to compress hydrogen into a metal has been a point of focus ever since scientists predicted many years ago that electricity would flow, uninhibited, through ...
Jun 13, 2011 |
4.6 / 5 (11) |
9
|
What is Consuming Hydrogen and Acetylene on Titan?
(PhysOrg.com) -- Two new papers based on data from NASA's Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturn's moon Titan. While non-biological chemistry offers one possible ...
Space & Earth / Space Exploration
Jun 03, 2010 |
4.9 / 5 (35) |
19
|
Research estimates how long Titan's chemical factory has been in business
Saturn's giant moon Titan hides within a thick, smoggy atmosphere that's well-known to scientists as one of the most complex chemical environments in the solar system. It's a productive "factory" cranking ...
Space & Earth / Space Exploration
Apr 24, 2012 |
3.7 / 5 (3) |
5
|
Polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico test
In response to the massive oil leak in the Gulf of Mexico, a University of Pittsburgh engineering professor has developed a technique for separating oil from water via a cotton filter coated in a chemical polymer that blocks ...
Jun 07, 2010 |
4.6 / 5 (13) |
2
|
Turning sunlight into liquid fuels (Video)
(PhysOrg.com) -- For millions of years, green plants have employed photosynthesis to capture energy from sunlight and convert it into electrochemical energy. A goal of scientists has been to develop an artificial ...
Mar 11, 2009 |
4.7 / 5 (22) |
2
Scientists Observe Liquid Water Below Freezing
(PhysOrg.com) -- Below 0 °C, water turns to ice. But beyond that, or below about -75 °C, the ice may turn back into liquid water. While scientists have previously predicted this phase transition with computer ...
Jun 24, 2009 |
4.3 / 5 (15) |
8
New biofuels processing method for mobile facilities
Chemical engineers at Purdue University have developed a new method to process agricultural waste and other biomass into biofuels, and they are proposing the creation of mobile processing plants that would ...
Jul 07, 2010 |
4.4 / 5 (8) |
4
|
