Your source for the latest research news
Transmission electron microscopy (TEM) is an imaging technique whereby a beam of electrons is focused onto a specimen causing an enlarged version to appear on a fluorescent screen or layer of photographic film, or to be detected by a CCD camera.
In the past, light microscopes have been used mostly for imaging due to their relative ease of use.
However, the maximum resolution that one can image is determined by the wavelength of the photons that are being used to probe the sample.
In the early days of microscopy nothing smaller than the wavelength being used could be resolved, whereas nowadays the law of RESOLFT sets the limit for optical microscopes employing such concepts.
High Levels of Exercise Linked to Nine Years of Less Aging at the Cellular Level
Newly Discovered Brain Network Offers Clues to Social Cognition
Cannabis Reverses Aging Processes in the Brain, Study Suggests
3-D Printed Ovaries Produce Healthy Offspring
Solving One of Nature's Great Puzzles: What Drives the Accelerating Expansion of the Universe?
NASA's EPIC View Spots Flashes on Earth
Space Weather Events Linked to Human Activity
How Hard Did It Rain on Mars?
Life in the Precambrian May Have Been Much Livelier Than Previously Thought
Cockatoos Keep Their Tools Safe
Marijuana Use Tied to Poorer School Performance
Self-Ventilating Workout Suit Keeps Athletes Cool and Dry
World's Thinnest Hologram Paves Path to New 3-D World
Destruction of a Quantum Monopole Observed
3-D-Printed, Soft, Four Legged Robot Can Walk on Sand and Stone
Even Non-Migratory Birds Use a Magnetic Compass
Wild Orangutan Teeth Provide Insight Into Human Breast-Feeding Evolution
When Birds of a Feather Poop Together: Excessive Birds Feces and Algal Blooms