THE KNOWLEDGE FEED

The visual "tail" of a comet has nothing to do with its direction of travel; rather, solar wind pushes it so that it always points away from the Sun.

The visual "tail" of a comet has nothing to do with its direction of travel; rather, solar wind pushes it so that it always points away from the Sun.

In 2006, Japan produced more than twice as many cars (9.8 million) as did the United States (4.4 million). America leads Japan in truck production, however (7 million to 1.7 million).

In 2006, Japan produced more than twice as many cars (9.8 million) as did the United States (4.4 million). America leads Japan in truck production, however (7 million to 1.7 million).

5 Questions: Troy

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

The Arkansas School for the Deaf's nickname is the Leopards.

The Arkansas School for the Deaf's nickname is the Leopards.

The first skyjacking occurred in 1931 in the skies above Peru. Two rebel soldiers forced the pilot of a Fokker F-27 to fly them over Lima so they could drop propaganda pamphlets onto the city.

The first skyjacking occurred in 1931 in the skies above Peru. Two rebel soldiers forced the pilot of a Fokker F-27 to fly them over Lima so they could drop propaganda pamphlets onto the city.

Brain Game: States Avenue

Sandy Wood

Two-digit Interstate numbers are designed to let drivers know the general direction of the highway. If the Interstate has an odd number, it runs north-south. Interstates with even numbers run east-west.

Two-digit Interstate numbers are designed to let drivers know the general direction of the highway. If the Interstate has an odd number, it runs north-south. Interstates with even numbers run east-west.

5 Questions: On the Button

Questions:5
Available:Always
Pass rate:75 %
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5 Questions: Magazine Covers

Questions:5
Available:Always
Pass rate:75 %
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The Advertising Slogans Quiz

Questions:11
Available:Always
Pass rate:75 %
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This quiz tests the copywriters who penned these taglines as much as it tests you. How well do you know your slogans?

5 Questions: It's Fun-akkah to Celebrate Hanukkah!

Questions:5
Available:Always
Pass rate:75 %
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5 Questions: Stuck on You

Questions:5
Available:Always
Pass rate:75 %
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The average album length has increased from 40 minutes in the LP era to well over an hour in the CD era. Most double-album LPs can fit onto a single CD.

The average album length has increased from 40 minutes in the LP era to well over an hour in the CD era. Most double-album LPs can fit onto a single CD.

5 Questions: A Day of In"fam"y

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

5 Questions: I Hate When That Happens

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

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