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Thursday, December 22, 2005

Evolution and Natural Selection (Listen up Pennyslvania) True / False

True or false: 1. Giraffes have long necks because they have to eat the leaves of the tall trees. True or False? 2. Evolution and Natural Selection can be summed up accurately by the phrase: "survival of the fittest"? True or False? Sign in to see full entry.

Tuesday, December 20, 2005

The second world interpretation of quantum theory is the many-worlds theory, in which it is suggested that probabilities are expressed in parallel universes. the author of this theory is an American named 1. Edwin Hubble 2. Stephen Hawking 3. William Paley Sign in to see full entry.

Monday, December 19, 2005

Now, Quantum Physics unveiled, made easy. Who's First? (Cloze)

In 1900, a physicist named Max Planck theorized that energy was absorbed or emitted from ___________ in descreet packets of energy that he _________ "quanta". 1. ________ 2. ________ Sign in to see full entry.

Now you try it...Quantum Theory is your Speciality! (fill in the blanks)

With Einstein's Theory of Relativity, it forms the basis for modern physics and even has practical applications in _________ and ____________. 1. ________ 2. ________ Sign in to see full entry.

What is Quantum Theory? (Fill in the blanks)...............................

Quantum theory is a theory developed in the first three ____________ of the _______________ Century the explains the ________________ and ______________ of matter and energy on the _____________ and ________________ level. 1. ____________ 2. ____________ 3. ____________ 4. ____________ 5.... Sign in to see full entry.

Sunday, December 18, 2005

Match these inventions and discoveries to 19th or 20th Centuries

If it weren't for electricity we'd all be watching tv by candlelight! -George Gobol 19th Century / 20th Century 1. aerosol can 6. machine gun 2. anesthetic 7. radar 3. antibiotics 8. solid-fuel rocket 4. typewriter 9. light bulb 5. vanuum cleaner 10. radio Sign in to see full entry.

Saturday, December 17, 2005

The size problem of these white elephant, infantile computers was solved by the invention of transistors. The hundreds of miles of wire were replaced by silicon chips where all the components were placed. The inventor of this chip idea was a. Konrade Zuse b. John Atanasoff c. Howard Aken d. Jack... Sign in to see full entry.

Monday, December 12, 2005

The Mark series of computers was built for the U.S. Navy at Harvard in 1944. It weighed five tons, was fifty-five feet long and was eight feet tall. The ENIAC (Electrical Numerical Integrator and Calculator) was even bigger: 1,800 sq. ft., weighed thirty tons, and cost $500,000.00. When it was... Sign in to see full entry.

Sunday, December 11, 2005

The first electronic digital computer was invented in, believe it or not, Iowa. Its owner worked with a graduate student. The year was 1939. It weighed over seven hundred pounds, could perform one operation in fifteen seconds (compared with 200 billion seconds for Gateway and Dell today) and... Sign in to see full entry.

Saturday, December 10, 2005

If it weren't for electricity we'd all be watching tv by candlelight!

-George Gobol The first programmable computer, a mechanical binary calculating machine, called th Z1, had a memory and could keep track of results for later use. It used movie film to store data and used the yes/no format. The inventor smuggled his final product, the Z4, to Zurich from Nazi Germany,... Sign in to see full entry.

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