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#1 Re: Dark Discussions at Cafe Infinity » crème de la crème » Today 01:13:58

63. Gottlieb Wilhelm Daimler (17 March 1834 – 6 March 1900) was an engineer, industrial designer and industrialist born in Schorndorf (Kingdom of Württemberg, a federal state of the German Confederation), in what is now Germany. He was a pioneer of internal-combustion engines and automobile development. He invented the high-speed petrol engine.

Daimler and his lifelong business partner Wilhelm Maybach were two inventors whose goal was to create small, high-speed engines to be mounted in any kind of locomotion device. In 1885 they designed a precursor of the modern petrol (gasoline) engine which they subsequently fitted to a two-wheeler, the first internal combustion motorcycle and, in the next year, to a stagecoach, and a boat. Daimler called it the grandfather clock engine (Standuhr) because of its resemblance to a large pendulum clock.

In 1890, they founded Daimler Motoren Gesellschaft (DMG, in English—Daimler Motors Corporation). They sold their first automobile in 1892. Daimler fell ill and took a break from the business. Upon his return he experienced difficulty with the other stockholders that led to his resignation in 1893. This was reversed in 1894. Maybach resigned at the same time, and also returned. In 1900 Daimler died and Wilhelm Maybach quit DMG in 1907. In 1924, the DMG management signed a long term co-operation agreement with Karl Benz's Benz & Cie., and in 1926 the two companies merged to become Daimler-Benz AG, which is now part of Daimler AG.

1229701_1_daimler_30473916.original.large-4-3-800-0-146-1698-1418.jpg

#2 Re: Ganesh's Puzzles » English language puzzles » Yesterday 18:03:10

Hi Monox D. I-Fly,

The Answer #2306 is correct! Good work!

#2307. What does the noun billfold mean?

#2308. What does the noun billow mean?

#3 Re: Ganesh's Puzzles » Oral puzzles » Yesterday 17:43:39

Hi Monox D. I-Fly and Relentless,

The solution #2721 is correct! Neat work!

#2722. The sum of a number and its square is 63/4, find the numbers.

#4 Re: Ganesh's Puzzles » English language puzzles » Yesterday 16:29:12

Hi bobbym,

The Answer #2303 is correct! Good work!

#2305. What does the noun bibliophile mean?

#2306. What does the noun bigot mean?

#5 Re: Ganesh's Puzzles » Oral puzzles » Yesterday 16:07:42

Hi Relentless and bobbym,

The two solutions in #2720 are correct! Magnificent!

#2721. The sum of the squares of two consecutive odd positive integers is 394. Find them.

#6 Re: Dark Discussions at Cafe Infinity » crème de la crème » 2016-02-08 17:22:53

62. Isaac Asimov (born Isaak Yudovich Ozimov; circa January 2, 1920 – April 6, 1992) was an American author and professor of biochemistry at Boston University, best known for his works of science fiction and for his popular science books. Asimov was prolific and wrote or edited more than 500 books and an estimated 90,000 letters and postcards. His books have been published in 9 of the 10 major categories of the Dewey Decimal Classification.

Asimov wrote hard science fiction and, along with Robert A. Heinlein and Arthur C. Clarke, he was considered one of the "Big Three" science fiction writers during his lifetime. Asimov's most famous work is the Foundation Series; his other major series are the Galactic Empire series and the Robot series. The Galactic Empire novels are explicitly set in earlier history of the same fictional universe as the Foundation series. Later, beginning with Foundation's Edge, he linked this distant future to the Robot and Spacer stories, creating a unified "future history" for his stories much like those pioneered by Robert A. Heinlein and previously produced by Cordwainer Smith and Poul Anderson. He wrote hundreds of short stories, including the social science fiction "Nightfall", which in 1964 was voted by the Science Fiction Writers of America the best short science fiction story of all time. Asimov wrote the Lucky Starr series of juvenile science-fiction novels using the pen name Paul French.

Asimov also wrote mysteries and fantasy, as well as much nonfiction. Most of his popular science books explain scientific concepts in a historical way, going as far back as possible to a time when the science in question was at its simplest stage. He often provides nationalities, birth dates, and death dates for the scientists he mentions, as well as etymologies and pronunciation guides for technical terms. Examples include Guide to Science, the three-volume set Understanding Physics, and Asimov's Chronology of Science and Discovery, as well as works on astronomy, mathematics, history, William Shakespeare's writing, and chemistry.

Asimov was a long-time member and vice president of Mensa International, albeit reluctantly; he described some members of that organization as "brain-proud and aggressive about their IQs". He took more joy in being president of the American Humanist Association. The asteroid 5020 Asimov, a crater on the planet Mars, a Brooklyn elementary school, and a literary award are named in his honor.

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#7 Re: Ganesh's Puzzles » English language puzzles » 2016-02-08 16:32:27

Hi bobbym,

The Answer #2302 is correct! Good work!

#2303. What does the noun bib mean?

#2304. What does the adjective bicameral mean?

#8 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-08 16:12:04

Hi bobbym and Relentless,

The two solutions in #2719 are correct! Splendid!

#2720. Solve:

.

#9 Re: Ganesh's Puzzles » English language puzzles » 2016-02-07 16:57:20

Hi bobbym and Relentless,

The Answer #2299 is correct! Excellent, Relentless!

#2301. What does the noun biathlon mean?

#2302. What does the noun bewilderment mean?

#10 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-07 16:25:33

Hi Relentless and bobbym,

The six solutions in #2718 are correct! Marvelous!

#2719. Find the whole number which when decreased by 20 is equal to 69 times the reciprocal of the number.

#11 Re: Ganesh's Puzzles » English language puzzles » 2016-02-06 17:23:41

Hi bobbym,

The Answer #2298 is correct! Good work!

#2299. What does the noun bête noire mean?

#2300. What does the noun bevel mean?

#12 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-06 16:57:26

Hi Relentless and bobbym,

The solution #2717 is correct! Excellent!

#2718. A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is
(i) the seven of clubs
(ii) jack
(iii) the ace of spades
(iv) a queen
(v) a heart
(vi) a red card

#13 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-05 23:19:40

Hi Relentless and bobbym,

The solution #2716 is correct! Excellent!

#2717. If

, find the value of
.

#14 Re: Dark Discussions at Cafe Infinity » crème de la crème » 2016-02-05 19:50:27

61. The Wright brothers, Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912), were two American brothers, inventors, and aviation pioneers who are credited with inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier-than-air human flight, on December 17, 1903 four miles south of Kitty Hawk, North Carolina. In 1904-1905 the brothers developed their flying machine into the first practical fixed-wing aircraft. Although not the first to build and fly experimental aircraft, the Wright brothers were the first to invent aircraft controls that made fixed-wing powered flight possible.

The brothers' fundamental breakthrough was their invention of three-axis control, which enabled the pilot to steer the aircraft effectively and to maintain its equilibrium. This method became and remains standard on fixed-wing aircraft of all kinds. From the beginning of their aeronautical work, the Wright brothers focused on developing a reliable method of pilot control as the key to solving "the flying problem". This approach differed significantly from other experimenters of the time who put more emphasis on developing powerful engines. Using a small homebuilt wind tunnel, the Wrights also collected more accurate data than any before, enabling them to design and build wings and propellers that were more efficient than any before. Their first U.S. patent, 821,393, did not claim invention of a flying machine, but rather, the invention of a system of aerodynamic control that manipulated a flying machine's surfaces.

They gained the mechanical skills essential for their success by working for years in their shop with printing presses, bicycles, motors, and other machinery. Their work with bicycles in particular influenced their belief that an unstable vehicle like a flying machine could be controlled and balanced with practice. From 1900 until their first powered flights in late 1903, they conducted extensive glider tests that also developed their skills as pilots. Their bicycle shop employee Charlie Taylor became an important part of the team, building their first airplane engine in close collaboration with the brothers.

The Wright brothers' status as inventors of the airplane has been subject to counter-claims by various parties. Much controversy persists over the many competing claims of early aviators. Historian Edward Roach argues that they were excellent self-taught engineers with a knack for tinkering more than for systematic research, but they proved to be poor businessmen.

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#15 Re: Ganesh's Puzzles » English language puzzles » 2016-02-05 18:44:33

Hi bobbym,

The Answer #2296 is correct! Excellent!

#2297. What does the verb (used with object) bestrew mean?

#2298. What does the verb (used with object) bestride mean?

#16 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-05 18:24:05

Hi bobbym,

The solution #2715 is correct! Excellent!

#2716. If

, find the value of
.

#17 Re: Ganesh's Puzzles » English language puzzles » 2016-02-04 18:44:39

Hi bobbym,

The Answer #2293 is correct! Neat work!

#2295. What does the noun bestiary mean?

#2296. What does the verb (used with object) bestir mean?

#18 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-04 18:22:12

Hi bobbym,

The solution #2714 is correct! Brilliant!

#2715. If

, find the value of
.

#19 Re: Ganesh's Puzzles » English language puzzles » 2016-02-03 18:50:16

Hi bobbym,

The Answer #2291 is correct! Good work!

#2293. What does the verb (used with object) besmirch mean?

#2294. What does the adjective besotted mean?

#20 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-03 18:23:39

Hi bobbym,

#2714. If

, find the
.

#21 Re: Ganesh's Puzzles » English language puzzles » 2016-02-02 19:16:03

Hi bobbym,

The Answer #2289 is correct! Good work!

#2291. What does the verb (used with object) besiege mean?

#2292. What does the adjective besmeared mean?

#22 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-02 15:47:58

Hi Relentless and bobbym,

The solution #2712 is perfect! Excellent, Relentless and bobbym!

#2713. If

, where 4A is an acute angle, find the value of A.

#23 Re: Introductions » jjc » 2016-02-01 19:06:29

Hi philaretus,

Welcome to the forum!

#24 Re: Ganesh's Puzzles » Oral puzzles » 2016-02-01 19:01:48

Hi bobbym,

The solution #2711 is correct! Brilliant!

#2712. A train travels a distance of 300 km at constant speed. If the speed of the train is increased by 5 km an hour, the journey would have taken 2 hours less. Find the original speed of the train.

#25 Re: Ganesh's Puzzles » Oral puzzles » 2016-01-31 20:01:42

Hi bobbym,

The solution (both parts) is correct! Good work!


#2711.  Solve for x:

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