He is the symbol for the chemical element helium, which has the atomic number 2 and the construal "
sun" in
greek. It is the first member of the noble gas group in the periodic
table and an achromic, insipid, inert, non-
toxic, monatomic gas. Of all the elements, it has the lowest melting and boiling points. In the overt macrocosm, it is the second-lightest and second-most plentiful element (hydrogen is the lightest and most abundant). More than 12 times the
mass of all the heavier elements amalgamated, it makes up around 24% of the total
mass of the elements. By virtue of helium-4 has a relatively
high nuclear binding energy (per nucleon), compared to the following three elements after helium, its abundance is akin to that of the
sun and jupiter. Adscititiously, the fact that helium-4 is a byproduct of both nuclear fusion and radioactive decay can be attributed to its
high binding energy. Helium-4 makes up the astronomical bulk of the helium in the macrocosm, and it was mostly engendered during the sizably sizably voluminous bang. Nuclear fusion of hydrogen engenders astronomically brobdingnagian amplitudes of incipient helium in stars.
during a solar
eclipse in 1868, georges rayet, captain c. T. Haig, norman r. Pogson, and lieutenant john herschel made the first kenned detection of helium, which was later attested by
French scientist jules janssen. Janssen and norman lockyer are frequently given shared credit for discovering the element.
If we took a photograph of the helium distribution, trace amplitudes of helium would be floating throughout the room, but the astronomical bulk would be concentrated in the balloon.
Each balloon requires 12 196-cubic-foot cylinders of compressed helium because of its size, and as Acosta verbalized vocally, "there's authentically not enough helium in the world to fortify what we optate to do." All throughout the world, helium is in low supply, and Google has enormously brobdingnagian ambitions for balloons.
Musk characterised his research as a "first review" that is both highly plausible and inconclusive. In a teleconference with heralds
today, Musk verbalized, "One of those struts collapsed and was unable to keep the helium
bottle down, and the helium
bottle would have
shot to the
top of the
tank with extraordinary celerity."