Daily Content Archive
(as of Friday, January 31, 2020)| Word of the Day | |||||||
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lineal
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| Daily Grammar Lesson | |
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Forming Compound Words with PrefixesA prefix attaches to the beginning of a word (known as the "root" or "stem word") to change its meaning. While the vast majority of prefixes don't require a hyphen when they are attached to the root, in what situation is it helpful to use a hyphen between the prefix and the stem word? More... | |
| Article of the Day | |
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 AerogelAn aerogel is a highly porous solid formed from a gel, such as silica gel, in which the liquid is replaced with a gas. The lightest is less than four times as dense as dry air. Silica-based aerogels are among the lightest, and some, nicknamed "solid smoke" or "frozen smoke," are nearly transparent. Heavier aerogels were first developed in 1931 and have been used to detect high-energy particles emitted by particle accelerators. What are some other applications of aerogels in everyday products? More... | |
| This Day in History | |
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_in_dynamics_test_chamber.jpg) United States Launches Explorer I (1958)Explorer I was the first American satellite. It was launched four months after the first artificial satellite, Sputnik I, was put into orbit by the Soviet Union, beginning the so-called space race. Although it carried a number of instruments, Explorer I was relatively small, weighing just 30 lbs (13 kg). It stopped transmission of data later in 1958, when its batteries died, but remained in orbit for more than 12 years. Where did it make its fiery reentry? More... | |
| Today's Birthday | |
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 Jack Roosevelt "Jackie" Robinson (1919)Robinson, a vocal member of the Civil Rights movement, was the first African-American baseball player in the modern major leagues and the first African American to be inducted into the Baseball Hall of Fame. In 1949, he led the National League in both stolen bases and batting average and was named its most valuable player. In recognition of his accomplishments both on and off the field, Major League Baseball retired Robinson's number in 1997. How many times did he "steal home" during his career? More... | |
| Quotation of the Day | |
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 He had but one eye, and the popular prejudice runs in favor of two.Charles Dickens (1812-1870) | |
| Idiom of the Day | |
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get the gist— To understand the central, essential, or general matter of something, such as an argument, speech, concept, process, etc., without being proficient in the more specific details. More... | |
| Today's Holiday | |
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 Nauru Independence Day (2020)This island in the Pacific Ocean gained independence from Great Britain on January 31, 1968. It had been governed by Australia. Independence Day is a national holiday in Nauru. More... | |
| Word Trivia | |
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Today's topic: request | |
| Match Up | |
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| Mismatch | |
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