Much like radio operators being encouraged to use the least possible amount of power to make a contact, chemists have a ...

From chemical building blocks, scientists have created synthetic cells that have most of the hallmarks of life.

Thyroid function tests are blood tests that measure hormone levels to check how well your thyroid is working. The most common tests are thyroid-stimulating hormone (TSH) and thyroxine (T4), which help ...

To use a light microscope to examine animal or plant cells. To make observations and draw scale diagrams of cells. Turn the coarse focus so that the stage is as close to the objective lens as possible ...

Late 1600s – Dutch scientist Antonie van Leeuwenhoek constructed a microscope with a single spherical lens. It magnified up to ×275. 1800s - the optical quality of lenses increased and the microscopes ...

Your liver handles metabolic, detoxification, and immune functions, including processing nutrients, making bile for fat digestion, producing blood-clotting proteins, and removing toxins like ammonia ...

Microscopy refers to any method used to acquire images of nearby objects at resolutions that greatly exceed the resolving ability of the unaided human eye. Object visualization may be mediated by ...

Dear Jim: We are empty-nesters now. Is it wise to move a portable air conditioner among rooms instead of running our central air as much to cool the entire house? – Kari K. Dear Kari: Using a portable ...