Which ultrasound mode maps Doppler frequency shifts as colors?
Answer
color Doppler
96057 Intermediate Trivia Questions
96057 public questions at this depth. How many can you answer?
Which dimensionless number is source speed divided by local sound speed?
Answer
Mach number
What does the C mean in CW Doppler radar?
Answer
continuous
What name is given to velocity along an observer's line of sight?
Answer
radial velocity
What radar type combines pulse timing with Doppler frequency shifts?
Answer
pulse-Doppler radar
A Doppler shift at right angles to the line of sight is called what?
Answer
transverse Doppler effect
Which named factor, symbolized by gamma, appears in relativistic Doppler formulas?
Answer
Lorentz factor
Doppler's 1842 paper discussed the colored light of which kind of stars?
Answer
binary stars
The word “sushi” comes from an archaic Japanese term meaning what taste?
Answer
Sour-tasting
A typical hosomaki sushi roll has about what diameter?
Answer
2.5 cm
What tofu product forms the pouch in inarizushi?
Answer
Abura-age
What wrapping replaces nori in chakin-zushi?
Answer
Omelette
What fish is called tai in Japanese sushi?
Answer
Sea bream
What fish is known as hamachi in Japanese sushi menus?
Answer
Japanese amberjack
In which Tokyo district is Sukiyabashi Jiro located?
Answer
Ginza
Which scientist received the 1908 Nobel Prize in Chemistry for work on radioactive substances?
Answer
Ernest Rutherford
Who announced the discovery of actinium in 1899 from pitchblende residues?
Answer
André-Louis Debierne
What term means one element changing into another during radioactive decay?
Answer
transmutation
Which English radiochemist explained radioactive transmutation with Ernest Rutherford?
Answer
Frederick Soddy
Thoron was later identified as which radon isotope?
Answer
radon-220
What radium compound was first isolated in a pure state?
Answer
radium chloride
Which German chemist discovered thorium's radioactivity two months before Marie Curie?
Answer
Gerhard Carl Schmidt
What did Marie Curie call the rays emitted by uranium compounds?
Answer
Becquerel rays
Which uranium compound was used in Becquerel's accidental dark-drawer experiment?
Answer
potassium uranyl sulfate
Which French institution received Becquerel's first 1896 reports on uranium rays?
Answer
French Academy of Sciences