- Waiting for Godot (Wikipedia)
Waiting for Godot (/ˈɡɒdoʊ/ GOD-oh) is a play by Irish playwright Samuel Beckett in which two characters, Vladimir (Didi) and Estragon (Gogo), engage in a variety of discussions and encounters while awaiting the titular Godot, who never arrives. Waiting for Godot is Beckett’s reworking of his own original French-language play, En attendant Godot, and is subtitled (in English only) “a tragicomedy in two acts”.
- Argon (Wikipedia)
Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third most abundant gas in Earth’s atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as abundant as neon (18 ppmv). Argon is the most abundant noble gas in Earth’s crust, comprising 0.00015% of the crust.