In 1819 he built for the German astronomer Friedrich Bessel a transit circle, combining the transit, an instrument used for determining longitude and time, with the mural circle, an instrument mounted on a wall for zenith measurement.
An instrument mounted on a telescope in Chile that was designed to study "cool" planets beyond the Solar System has found its first Jupiter-like object – a young, gas-filled planet rich in methane.
The commissioned instrument, mounted on the Keck I 10-m telescope, delivers diffraction-limited images of 0.29″ FWHM at 11.7 μm.
When the stereo imaging instrument mounted on a crystalliser captures 2D images, the images are segmented to obtain the contour information and processed to obtain Fourier descriptors and radius-based information.
The experiment IVIDIL (Influence of Vibrations on Diffusion in Liquids) is scheduled to be performed in forthcoming fall 2009 onboard the ISS, inside the SODI instrument mounted in the Glovebox on the ESA Columbus module.
Dr Fred Prata, a senior scientist from NIAR, said: "One aircraft will sprinkle about a tonne of ash into the atmosphere and another will come at it from a distance with our instrument mounted onboard and see the cloud.
Additional snow measurements were provided by the Arctic Arc Expedition, and the Alfred Wegener Institute's Airborne Synthetic Aperture and Interferometric Radar Altimeter System (ASIRAS) instrument, mounted aboard a Dornier Do 228 aircraft.
An array of fibers from the instrument, mounted on a phantom, enables tracking of the holder.
Individual nematodes were picked out of the meiofauna fraction using a fine wire instrument, mounted on slides, and identified down to genus level; video capture images were recorded for all specimens in order to retain a voucher of morphology before specimens were destroyed for molecular analysis.
Individual nematodes (representing the order Enoplida) were picked out of the meiofauna fraction using a fine wire instrument, mounted on slides, and identified to genus level; video capture images were recorded for all specimens in order to retain a voucher of morphology before specimens were destroyed for molecular analysis.
