There is a decent case for the existence of four real (Euclidian) spatial dimensions. Modern physics is a bit ambivalent on hyperspace, since space and time are already unified in the four-dimensional "Minkowski continuum" called spacetime. However, spacetime has no Euclidean 4th dimension - but many theories depend on the reality of another spatial dimension (such as Dirac reciprocal space).
According to NASA, based on observation and theory - when the Universe was formed in the Big Bang, the resulting elemental matter which formed in expanding spacetime was about three quarters hydrogen, one quarter helium, and a few parts-per-billion of lithium (by weight). Everything else was de minimus. Billions of years later, about 90% of this original matter converted into some kind of dark matter. It no longer seems to exist in Euclidian space. No one really knows what dark matter is - but it could simply related to the present 4-space location of the original primordial matter. If so, then about ¾ of dark matter is dark hydrogen and ¼ is dark helium. That is the required preamble to "Helium from nowhere" ... which could be an relevant factor in some LENR experiments, but is generally ignored. >From time to time the oddity of "spontaneous hydrogen" does come up for discussion. Many respected experimenters have reported the surprising appearance of hydrogen-from-nowhere in vacuum experiments. The most famous is from Sir J.J. Thomson who won the 1906 Nobel Prize in Physics for the discovery of the electron ... and for his work on the conduction of electricity in gases. He was the premiere expert on vacuum anomalies of an earlier era. JJ was convinced of the reality of spontaneous hydrogen. Mainstream physics writes off much of what Thomson and others have claimed to experimental error, but similar findings persist today, even with the best equipment. Some of the stories have been cataloged here: http://blog.hasslberger.com/2006/06/hydrogen_from_space_the_aether.html At any rate, the point of all of this is not obvious so it should be stated: if you believe that spontaneous hydrogen does indeed happen in a vacuum and especially in vacuum arcs, and that it derives from a fourth spatial dimension - then the lesser known implication is that "helium" from nowhere is also to be expected. Jones
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