CL. Test 76-100 Flashcards
What is a nanosecond?
76
A billionth of a second
What is nanosecond used to refer to?
76
A very short time
What is nanotechnology?
77
Devices on the atomic scale
How big is the working part of a piece of nanotechnology?
77
A few thousand atoms in width
What is a neural network?
78
A computer designed to mimic the brain
Why were neural networks developed?
78
To deal with problem solving.
What is offshore drilling?
79
Operating oil wells of e coast
What does public debate usually focus on with this topic?
79
The possibility of oil spills
What is a perpetual motion machine?
80
A machine that could run forever
Why are perpetual motion machines impossible?
80
The 2nd law of thermodynamics
What is radar?
81
A finding things with radio
What s a common use for radar?
81
Police speed trackers
What is radioactive material?
82
Material that has been exposed to radiation
What’s highly radioactive material?
82
Material left behind after the fuel in a reactor is gone.
What’s software?
83
Programs and instructions for a computer
What is the counterpart to software?
83
Hardware
Wha is the spirit of st Luis?
84
Charles Lindberghs airplane
What’s stealth technology?
87
The use of specialized materials and advanced design.
What does stealth do?
87
Cloaks aircraft from radar.
Who were the Wright Brothers?
88
A pair of bicycle makers.
What did the Wright brothers do?
88
Designed and flew the first airplane.
What is the Achilles’ tendon?
89
A tendon connecting the heel bone with the calf muscle
Who was Achilles?
89
A Greek mythological hero who could only be wounded in the heel.
What is acupuncture?
90
A technique where certain points on the body are poked with a needle to relieve stress and pain.
Where is acupuncture from?
90
China
What is AIDS?
91
A disease that attacks the immune system
Where does AIDS come from?
91
Africa
Where did AIDS originate?
92
Africa
In 2006 how many people contracted AIDS?
92
65 million
What is alcoholism?
93
A disease that is characterized by physical dependance.
What is one symptom of alcoholism?
93
Poor nutrition, liver disease, brain disorders, abnormal heartbeat, cancer, birth defects
Hat is anorexia nervosa?
94
A psychosomatic disorder
What does anorexia do?
94
Makes you not eat
What is a bacterial infection?
95
An infection caused by bacteria
What are bacteria?
95
Microscopic organisms
What does benign mean?
96
Harmless
What is benign used to refer to?
96
Non-cancerous tumors or growths
What is biofeedback?
97
Where someone controls their body functions.
How do you learn biofeedback?
97
By being hooked up to machines and observing bodily functions
What s blood pressure?
98
The pressure of the blood against the blood vessels
Can age affect blood pressure?
98
Yes it can
What is blood type?
99
A categorization system for blood
What does blood type mean?
99
What blood you can be given in a transfusion
What is a blood vessel?
100
Tubes for blood to travel in
What’s a type of blood vessel?
Arteries, veins and capillaries
