If a single bacterial cell isn't visible to the naked eye, how can we know so much about it? Scientists have developed powerful microscopes to magnify bacteria — usually ranging from one to a handful of microns (one millionth of a meter) in length, giving us a glimpse into their inner...
If a single bacterial cell isn't visible to the naked eye, how can we know so much about it? Scientists have developed powerful microscopes to magnify bacteria — usually ranging from one to a handful of microns (one millionth of a meter) in length, giving us a glimpse into their inner...
purifiers can have limited effectiveness. Our Infinity air purifiers features a MERV 15 air filter3and patented Captures & Kills®technology that inactivates select airborne pathogens flowing through your HVAC system and captured by the filter, including the coronavirus, bacteria and other pathogens.1...
The next step in the process is to grind the roasted nibs into a smooth, uniform mass. You want to take the nibs and "refine" the cocoa solids into the smallest possible size particles that you can. The human tongue can detect particles larger than 30 microns (about a thousandth of an ...
He works with an electron microscope, which is the machine that makes those pictures of bacteria blown up as big as cheese curls from high school textbooks. In short, he freezes misfolded proteins, takes pictures of them from multiple angles, then uses computers and his own formidable knowledge...
A genuine HEPA filter is much more hygienic than an ordinary one because it will stop mold spores and even some bacteria and viruses. It's cleaning at the microscopic—and indeed nanoscopic—scale. By comparison, the fibers in a HEPA filter are roughly 0.002–0.5 microns (2–500 nanometers...
there are times when additional equipment is necessary, such as if your HVAC system isn't big enough to properly filter the air in your building. Fortunately, an air purifier or a dehumidifier can pick up the slack. But, while these two pieces of equipment can appear similar in size and ...
That's smaller than pollen grains (5–10 microns) or red blood cells (10–30 microns), roughly the same size as "typical" bacteria (1–5 microns is a good rule of thumb), but still bigger than most viruses (which tend to be smaller than 0.5 microns). Since microfibers can't ...
In 1943, Oswald Avery and colleagues at Rockefeller University showed that DNA taken from a bacterium,Streptococcus pneumonia, could make noninfectious bacteria become infectious. These results indicated that DNA was the information-containing molecule in the cell. The information role of DNA was furthe...
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