ARITHMETALK
IN SEARCH OF ALIEN LIFE
IT'S A PROCESS
THEIR '90s HIT ALBUM
"H" IS FOR HISTORY
100

In an "improper" one of these, the numerator is greater than the denominator

Fraction

100

As the name suggests, the $100 million Breakthrough Listen is a project to detect this type of signal from distant planets

Radio

100

Chester Carlson's photocopying process was rejected by over 20 companies before this one bought it & made him rich

Xerox

100

According to Rolling Stone, the best album of the decade:
"Nevermind"

Nirvana

100

He helped make the Teamsters the USA's largest labor union, but his whereabouts are a mystery

Jimmy Hoffa

200

In the expression 25, 2 is the base & 5 is this, the power to which 2 is raised

The Exponent

200

The area around a star where conditions are "just right" for life is called this zone, after a fairy tale girl

Goldilocks

200

The Fifth Amendment guarantees that no person shall be "deprived of life, liberty, or property, without" this

Due Process

200

"Mama Said Knock You Out"

LL Cool J

200

On Oct. 14, 1066 King Harold was killed at this battle

Hastings

300

The fundamental theorem of arithmetic says all composite numbers can be expressed as a product of these,
e.g. 65 = 5 x 13

Prime Numbers

300

A purported UFO crash in this southwest city in 1947 has spawned great interest & an annual festival

Roswell

300

Darwin wrote that he called a process this "or survival of the fittest"

Natural Selection

300

1992's Grammy-winning Album of the Year: this Brit's
"Unplugged"

Eric Clapton

300

This abolitionist wrote "The Battle Hymn Of The Republic", the semiofficial song of the Union Army

(julia Ward) Howe

400

The counting numbers beginning 1, 2, 3... are also known as these alliterative "numbers"

Natural 

400

A British project to develop a spacecraft capable of reaching a nearby star within 50 years is named for this mythic Greek flyer

Icarus

400

In the Catholic church, this part of the canonization process gives the holy person the title "blessed"

Beautification 

400

"Mellon Collie and the Infinite Sadness"

Smashing Pumpkins

400

In 1825 Charles X of France finally recognized this nation, 21 years after it declared its independence

Haiti

500

This law of addition says x + y = y + x

Commutative 

500

A theoretical basis of alien life is this 2nd most common element in Earth's crust; scientists have made enzymes bond it to carbon

Silicon

500

In the 1830s this Frenchman developed a new photo process that cut exposure time from 8 hours to less than 30 minutes

Daguerre

500

"Vitalogy", featuring "Better Man"

Pearl Jam

500

As many as 30,000 of these German mercenaries fought during the American Revolution & some were with Cornwallis when he surrendered

Hessians