They also calculate that the density of this material is about the same as that predicted for beta-carbon nitride. But the strongest lines of evidence come from measuring the X-rays kicked out of the CNx layers by the energetic electron beam, and from the way that the material absorbs infrared radiation. All of this looks promising, but stops tantalizingly short of providing definitive evidence that beta-carbon nitride has been found. So far, the sandwich is spread too thinly for physicists to clearly taste what it contains. Her father, Homer, is furious.
Most houses do.
The groundbreaking experiment was carried out onboard the Mir space station last year as part of the French-Russian Perseus mission. That gentle squeeze raised the temperature of the gas above that of the cell walls. For this to happen, heat must have been transferred from the cooler walls to the hotter gas, scientists report in the 1 May Physical Review Letters. Common sense tells us that liquids are different from gases. Liquids are dense, gases are light.