What are some ultramicroscopic objects?
Ultramicroscopic objects, sometimes called submicroscopic or nanoscopic, are too small to be used by a conventional microscope. This usually applies to objects smaller than about the size of micron, but can refer to bacteria as large as several microns across. Mikron or micrometer is a millionth meter, followed by a nanometer that is a billion meter.
The most common means of observation of ultramicroscopic objects is an electron microscope, invented in 1931. Several others include an ultramicroscope that observes objects less than the wavelength of light by observing their diffraction circles against the black body.
Some ultramicroscopic lengths and objects include:
- hydrogen atom - 0.05 nm.
- sulfur atom - 0.1 nm.
- Carbon nanotubery diameter - 1 nm.
- DNA diameter Helix - 2 nm.
- 10 pairs of bases in typical DNA Strand - 3, 4 nm.
- thickness of typical cell membrane - 6-10 nm.
- The smallest viruses - 20 nm.
- wavelength of extreme ultraviolet light - 40 nm.
- The smallest size of the functions of current microchips - 65 nm.
- The size of typical smoke particles - 100 nm.
- The largest known virus,
- The spectrum of visible light (purple) begins - 380 nm.
- The diameter of the largest known virus, mimivirus - 400 nm.
- diameter of the smallest known bacteria, Hemophilus influenzae - 500 nm.
- informal upper limit of ultramicroscopic regime - 1000 nm.
When the electron microscope first began to be used commercially at the age of 40, one of its first applications was the characterization and description of viruses that have previously been considered relatively mysterious. Much of the pioneering research took place in Germany, Canada and the United States. Found that viruses, along with the majorityIn other ultramicroscopic objects, it does not change in relation to their environment, which is expected to exclude them in the inclusion of the Tree of Life.
Another use for ultramicroscopes is observing particles of fog fog and watching ions in cloud chambers and studying Brownian's movement, which was one of the first topics that Einstein at the beginning of his physical career.