Knowledge
/ArcaMax
What is a long balloon filled with helium generally called?
Blimp. The Goodyear blimp under constant security and never left alone.
Which device holds a phono cartridge?
Tone Arm. A phono cartridge is an electro-mechanical device mounted at the front of a tonearm on a turntable.
What is the freezing point of water in the Kelvin Scale?
273.15. The Kelvin scale is named for William Thomson, 1st Baron Kelvin, a physicist in Northern Ireland.
What color eyes are the most sensitive to light?
Blue. Less pigment in the iris makes the eye more sensitive to light.
What did early ocean scientists use to measure the distance to the ocean floor?
Weighted Ropes. Using weighted ropes to profile the ocean floor is called "sounding".
Which of the following is a compound?
Carbon Dioxide. Carbon dioxide is emitted naturally through the carbon cycle.
What is a tropical cyclone formed in the Pacific Ocean called?
Typhoon. Typhoons in the eastern portion of the North Pacific are called "hurricanes".
Which of these scientific terms is defined as the Earth moving between the Sun and the Moon?
Lunar Eclipse. A lunar eclipse can occur only when the Sun, Earth, and Moon are very closely with the Earth in the middle.
What unit of measurement is one-thousandth of a gram?
Milligram. The United States has not yet adopted the metric system.
What is the natural sonar that some animals use called?
Echolocation. Echolation, similar to radar, bounces sound waves off objects in order to locate them.
What amino acid causes sleepiness following the consumption of a traditional Thanksgiving dinner?
Tryptophan. Tryptophan induces production of serotonin.
What type of scientist studies changes and interactions with matter including time and light?
Physicist. Albert Einstein is probably the world's best known physicist.
Which volcano is the only active spewer on the European mainland?
Vesuvius. Vesuvius, of Italy, is the only active mainland volcano.
What type of rock forms from melted rock and comes to the surface to harden?
Igneous Rock. The three main types of rock are igneous, sedimentary and metamorphic.
What makes up most of dust particles found in a house?
Dead Skin. About 40,000 dead skin cells are lost every minute of each day.
What was magnetite called by the early Europeans?
Lodestone. A lodestone is a naturally magnetized piece of the mineral magnetite.
Which of the following prefixes indicates the smallest amount?
Zepto-. Zepto denotes a factor of 10 to the -21st power.
What does the first "A" in NASA stand for?
Aeronautics. In 1971, NASA was the fourth site connected to ARPAnet.
What type of gem is the Star of Africa or the Cullinar II?
Diamond. One of largest diamonds in the world came from the Kimberly Mines of South Africa.
What pressure is equivalent to one standard atmosphere?
1013.25 mb. Changes in air pressure indicate a change in the weather.
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