Universe was filled homogeneously and isotropically with an incredibly high energy density and huge temperatures and pressures and was expanding and cooling. Baryogenesis violated the conservation of baryon number, leading to a very small excess of quarks and leptons over antiquarks and antileptons, defining predominance of matter over antimatter. Symmetry breaking phase transitions put the fundamental forces of physics and the parameters of elementary particles into their present…
May 2013 : Cold fusion reactor independently verified, has 10,000 times the energy density of gas. Against all probability, a device that purports to use cold fusion to generate vast amounts of power has been verified by a panel of independent scientists.
Tetryonics 80.07 - The Vacuum Energies that permeate the Cosmos is comprised of convergent and divergent Planck energy momenta fields that almost balance each other in each geometric field..... when all the radiated VE field geometries are accounted for the total energies of the Universe balances itself exactly despite its huge cosmological energy density.
Folding batteries increases their areal energy density by up to 14 times. By folding a paper-based Li-ion battery in a Miura-ori pattern (similar to how some maps are folded), scientists have shown that the battery exhibits a 14x increase in areal energy density and capacity due to its smaller footprint.
The float or Sink poster shows the basic idea of what Density is. Includes examples of items that sink or float and a basic definition of density. Meets Texas 5th grade Science TEK 5.5A .Sink or Float Poster by Debra Finney is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Resin cast of arteries in the brain. Your brain consumes about 20% of your body's energy so it needs a lot of blood flow to keep it supplied with nutrients. Even knowing that, the density of the neurons here amazes me--they look almost the size of the brain itself!
The Pelamis wave energy converter. This is perhaps the most advanced device for long period waves such as those in the North Pacific ocean. The Finavera Ltd. company has a nice movie of their wave energy project proposed in Oregon. There are many different wave energy converters and no clear leader in technology. The power density from wave energy farms appears to be about 2 MW/km2. We expect wave technology to stabilize and become a reliable power source in about ten years, by 2020.