(Encyclopedia) Shakespeare's Plays(arranged by approximate date of composition)
Play
Approximate date of composition
Date of first publication
Sources
Major characters
Genre
Henry VI, Part II…
(Encyclopedia) Radio Frequencies
Frequency
(kHz)
Name
Abbr.
10–30
Very low
VLF
30–300
Low
LF
300–3,000
Medium
MF
3,000–30,000
High
HF
30,000–300,000
Very high
VHF
300,000–3,000,000
Ultra…
HOW MANY ELEMENTS ARE THERE? WHICH ARE THE MOST COMMON ELEMENTS? METALSPERIODIC TABLEFIND OUT MOREA substance made up of one kind of atom is an element. Gold is an element because it only contains…
(Encyclopedia) technetiumtechnetiumtĕknēˈshēəm [key] [Gr. technetos=artificial], artificially produced radioactive chemical element; symbol Tc; at. no. 43; mass no. of most stable isotope 98; m.p. 2,…
Dog Days of Summer The origins of the name for the most sultry days of the season Source: Columbia Encyclopedia Dog Days is the name for the most sultry period of summer, from…
(Encyclopedia) scandiumscandiumskănˈdēəm [key], metallic chemical element; symbol Sc; at. no. 21; at. wt. 44.95591; m.p. 1,541℃; b.p. 2,831℃; sp. gr. 2.99 at 20℃; valence +3. Scandium is a soft…
Encyclopedia: Science The Six Kingdoms of Life The Branches of Science Scientific Classification The Chemical Elements Elements Table The Periodic Table Table of…
(Encyclopedia) alkali metals, metals found in Group 1 of the periodic table. Compared to other metals they are soft and have low melting points and densities. Alkali metals are powerful reducing…
