The new X-ray telescope NuSTAR has opened its eye and taken its first images.
The new X-ray telescope NuSTAR has opened its eye and taken its first images.
Tag: science
Data of the tidal fluxes on Titan by the Cassini spacecraft now suggest that there is a liquid ocean below Titan’s icy crust.
Data of the tidal fluxes on Titan by the Cassini spacecraft now suggest that there is a liquid ocean below Titan’s icy crust.
The team’s analyses suggest that the surface of the moon can rise and fall by up to 10 metres during each orbit, says Iess. That degree of warpage suggests that Titan’s interior is relatively deformable, the team reports today in Science1. Several models of the moon’s internal structure suggest such flexibility — including a model in which the moon is solid but soft and squishy throughout. But the researchers contend that the most likely model of Titan is one in which an icy shell dozens of kilometres thick floats atop a global ocean. The team’s findings, together with the results of previous studies, hint that Titan’s ocean may lie no more than 100 km below the moon’s surface.
Solar scientists think they have found out what heats the Sun’s atmosphere: Giant solar tornadoes thousands of miles high.
Solar scientists think they have found out what heats the Sun’s atmosphere: Giant solar tornadoes thousands of miles high.
Scientists have found a previously unknown mineral embedded in a meteorite that crashed to Earth in 1969.
Scientists have found a previously unknown mineral embedded in a meteorite that crashed to Earth in 1969.
Dubbed panguite, the new titanium oxide is named after Pan Gu, the giant from ancient Chinese mythology who established the world by separating yin from yang to create the earth and the sky. … “Panguite is an especially exciting discovery since it is not only a new mineral, but also a material previously unknown to science,” says Chi Ma, a senior scientist and director of the Geological and Planetary Sciences division’s Analytical Facility at Caltech and corresponding author on the paper.
Brookhaven Labs has achieved the hottest man-made temperature ever, 4 trillion degrees Celsius.
Brookhaven Labs has achieved the hottest man-made temperature ever, 4 trillion degrees Celsius.
In the process, the scientists have found that matter at these temperatures acts more like a liquid than a gas, something they did not expect.
The scientific stupidity of the TSA’s security rules.
The scientific stupidity of the TSA’s security rules.
Here’s one example from the article:
Take the Transportation Security Administration’s rules about carry-on electronics, for example. Laptops have to come out of their bags and lie flat in a plastic tub—but not tablets, phones, Kindles, cameras or portable game consoles. Why the distinction? The TSA says that it’s not just about detecting explosives: removing bigger gadgets also unclutters your bag for better x-ray examination. Even so, on close inspection the rules get arbitrary very quickly. For example, according to the TSA, the 11-inch model of the MacBook Air is fine to leave in your bag, but the 13-inch model must be removed.
It appears the Easter Island statues did walk the eleven miles from the quarry where they were carved.
It appears the Easter Island statues did walk the eleven miles from the quarry where they were carved — as believed by natives. With video.
More fraud in the social psychology field: A psychologist at Erasmus University in Rotterdam has resigned, with two of his papers now retracted.
More fraud in the social psychology field: A psychologist at Erasmus University in Rotterdam has resigned for faking data, with two of his papers now retracted.
[Dirk] Smeesters conceded to employing the so-called “blue-dot technique,” in which subjects who have apparently not read study instructions carefully are identified and excluded from analysis if it helps bolster the outcome. According to the report, Smeesters said this type of massaging was nothing out of the ordinary. He “repeatedly indicates that the culture in his field and his department is such that he does not feel personally responsible, and is convinced that in the area of marketing and (to a lesser extent) social psychology, many consciously leave out data to reach significance without saying so.”
But the university panel goes on to say that it can’t determine whether the numbers Smeesters says he massaged existed at all. He could not supply raw data for the three problematic experiments; they had been stored on a computer at his home that had crashed in September 2011 and whose data his brother-in-law had assured him were irretrievable. In addition, the “paper-and-pencil data” had also been lost when Smeesters moved house. The panel says it cannot establish Smeesters committed fraud, but says he is responsible for the loss of the raw data and their massaging.
That Smeesters considers it perfectly okay to manipulate data to strengthen his conclusions tells us how little he knows about science. That he considers this “common in his field” suggests that we should probably not pay much attention to almost anything published in the field of social psychology, especially considering last year’s scandal.
A human-powered helicopter was successfully flown for 50 seconds on June 21, setting a new world record.
A human-powered helicopter was successfully flown for 50 seconds on June 21, setting a new world record. Video below the fold.
This effort is an attempt to win the $250,000 AHS Sikorsky Prize, which requires a human-powered helicopter to fly for one minute at a height of three meters. The prize was first announced in 1980, and has remained unclaimed for the past 32 years.
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China’s astronauts successfully undocked, backed away from their space station, and then completed a manual docking early today.
China’s astronauts successfully undocked, backed away from their space station, and then completed a manual docking early today.
A three man crew took a Chinese submersible to a depth of 22,800 feet in the Mariana Trench earlier this week, the record for that nation.
China isn’t only going up: A three man crew took a Chinese submersible to a depth of 22,800 feet in the Mariana Trench earlier this week, the record for that nation.
The first complete view of Earth as a globe — looking down from above the north pole.
The first complete view of Earth as a globe — looking down from above the north pole.