Sub

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Possible Answers: HERO, ALT, UBOAT, TEMP, SITIN, PROXY, STANDIN, HOAGIE, ALTERNATE, HEROSANDWICH.

Last seen on: –Wall Street Journal Crossword – August 20 2019 – Eye Poetry
LA Times Crossword 19 Jul 19, Friday
Newsday.com Crossword – Oct 25 2018
NY Times Crossword 6 Sep 18, Thursday

Random information on the term “HERO”:

Hero of Alexandria (Greek: Ἥρων ὁ Ἀλεξανδρεύς, Heron ho Alexandreus; also known as Heron of Alexandria; c. 10 AD – c. 70 AD) was a Greek mathematician and engineer who was active in his native city of Alexandria, Roman Egypt. He is considered the greatest experimenter of antiquity and his work is representative of the Hellenistic scientific tradition.

Hero published a well recognized description of a steam-powered device called an aeolipile (sometimes called a “Hero engine”). Among his most famous inventions was a windwheel, constituting the earliest instance of wind harnessing on land. He is said to have been a follower of the atomists. Some of his ideas were derived from the works of Ctesibius.

Much of Hero’s original writings and designs have been lost, but some of his works were preserved in Arabic manuscripts.

It is almost certain that Hero taught at the Musaeum which included the famous Library of Alexandria, because most of his writings appear as lecture notes for courses in mathematics, mechanics, physics, and pneumatics. Although the field was not formalized until the twentieth century, it is thought that the work of Hero, his automated devices in particular, represents some of the first formal research into cybernetics.

HERO on Wikipedia

Random information on the term “ALT”:

Altbier (German: old beer) is a style of beer brewed in the historical region of Westphalia and around the city of Düsseldorf, Germany. Its name comes from it being top-fermented, an older method than the bottom fermentation of other lagered beers.

Altbier is usually a dark copper colour. It is fermented at a moderate temperature using a top-fermenting yeast which gives its flavour some fruitiness, but matured at a cooler temperature, which gives it a cleaner and crisper taste more akin to lager beer styles than is the norm for top-fermented beers, such as British pale ale.

Altbier is the dominant beer variety in the Lower Rhine region and especially in the towns of Düsseldorf, Krefeld and Mönchengladbach. The first producer to use the name Alt to contrast its top fermenting beer with the bottom fermenting kinds was the Schumacher brewery of Düsseldorf, which opened in 1838.

The market leader in terms of volume sold is Diebels, a brand within the InBev brewing empire. Other mass-market brewers of Altbier include the Radeberger Gruppe under the brands Schlösser Alt and Hansa Alt. These are complemented by small breweries, predominantly based in Düsseldorf.

ALT on Wikipedia