from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A device that measures the intensity of radiant energy, consisting of a partially evacuated glass bulb containing lightweight vertical vanes, each blackened on one side, suspended radially about a central vertical axis to permit their revolution about the axis as a result of incident radiation.
- n. An instrument that detects electromagnetic radiation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A device that measures radiant energy.
from the GNU version of the Collaborative International Dictionary of English
- n. A forestaff.
- n. An instrument designed for measuring the mechanical effect of radiant energy.
from The Century Dictionary and Cyclopedia
- n. An old instrument for measuring angles; the cross-staff.
- n. An instrument which serves to transform radiant energy into mechanical work.
- n. An instrument for the detection and measurement of small amounts of radiant energy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. meter to detect and measure radiant energy (electromagnetic or acoustic)
They are part of my fascination with the supernatural, the otherworldly, the dark and sinister, in contrast to the radiometer, which is of the material world, and which relies on the light, rather than dark.
The device, called a radiometer, is based on a classical light-powered, rotating vane most often seen in mall novelty stores.
A few years ago, Professor Crookes, of London, having observed that light pith balls delicately suspended in a vacuous tube were under certain conditions repelled by the sun's rays, was led on from step to step until he had constructed the instrument now so well known as the radiometer, in which a delicate wheel is rapidly turned by the rays of the sun, or by the rays of any source of bright light, shining on its blackened vanes.
Another radiometer instrument was also able to take measurements during the eclipse.
The eclipse was also detected by the Proba-2's LYRA Lyman Alpha Radiometer instrument, the first ultraviolet radiometer in space that employs diamond detectors.
Behind them, an angle-poise lamp (with low energy lightbulb to salve my eco-conscience), a Beanie Baby skeleton called Creepers (my NaNoWriMo mascot from last year), small plush Cthulhu toy, a Crookes radiometer and the latest addition to my desk, a large gargoyle candle stick.
The radiometer keeps me grounded in reality, a testament to my fascination with how things work, the practicalities and realities of the physical world.
Senator Obama has shown himself to be the embodiment of a solar radiometer: The more heat and light (scrutiny) he gets, the faster he spins.
By spending a few extra days in the inner belt the MEGS-P radiometer was able to measure a more complete picture of the radiation belt.
That was corroborated with DIVINER measurements with LRO a radiometer on the Lunar Reconnaissance Orbiter.