Do we obtain images by observing submillimetre-wavelength light?
Yes, although this radiation may not be visible to human eyes, we can image the Universe using radiation with wavelengths far beyond those of visible light. For example, the Large APEX Bolometer Camera LABOCA, is an invaluable tool for imaging the submillimetre-wavelength Universe. LABOCA uses an array of extremely sensitive “thermometers” known as bolometers to detect submillimetre light. With almost 300 pixels, it is the largest such camera in the world. In order to be able to detect the tiny temperature changes caused by the faint submillimetre radiation, each of these thermometers is cooled to less than 0.3 degrees above absolute zero — a frigid minus 272.85 degrees Celsius.
Related Questions
- Can I obtain files or transparencies of non-standard images, for example loan paintings, National Gallery paintings in their frames, x-rays, infra-reds, or conservation material?
- Where can I obtain background information and/or images for a former student, faculty or staff member no longer at the University?
- How do I obtain permission to use images/film in SDASMs collection?
