Helium Helium Helium (from ) is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. After hydrogen, helium is the second lightest and second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its abundance is similar to this figure in the Sun and in Jupiter. This
The Lowest Animal The Lowest Animal The Lowest Animal is an 1896 philosophical essay written by American author Mark Twain. Twain describes fictional experiments he did with animals in which they showed greater civility than humans. In the essay Twain satirizes human nature by describing a series of experiments he supposedly conducted at the London Zoological Gardens. Twain takes Darwin's evolution theory that humans evolved from earlier ancestors, or “lower animals,” and turns it upside down. He describes deeds done by powerful people against the helpless, and states the many ideas that made him ponder about the lack of humanity. He ends the