What is John Adams most remembered for? Adams was well known for his extreme political independence, brilliant mind and passionate patriotism. He was a leader in the Continental Congress and an important diplomatic figure, before becoming America’s first vice president. Why was John Adams so unpopular? John Adams signed the unpopular Alien & Sedition Acts […]
What should you not do when using a micropipette?
What should you not do when using a micropipette? Never point a pipette up. This may cause liquid to run down into the pipette destroying it. When withdrawing liquids with the pipette, always release the plunger slowly. This prevents liquid from rushing into the end of the pipette and clogging it up. Why should you […]
What joints are the most freely movable?
What joints are the most freely movable? A synovial joint, also known as a diarthrosis, is the most common and most movable type of joint in a mammal’s body. Diarthroses are freely movable articulations. In these joints, the contiguous bony surfaces are covered with articular cartilage and connected by ligaments lined by synovial membrane. Which […]
Is a glass of water transparent or translucent?
Is a glass of water transparent or translucent? Materials like air, water, and clear glass are called transparent. When light encounters transparent materials, almost all of it passes directly through them. Glass, for example, is transparent to all visible light. Translucent objects allow some light to travel through them. Does transparent have to be clear? […]
Why do you spin faster when your arms are closer to your body?
Does soil hold heat?
Does soil hold heat? Keeping the soil surface clean of vegetation allows it to absorb more heat during the day. Soils have a large heat capacity, so they can capture and store considerable heat during sunny days. Moist, packed soils can be as much as five degrees F warmer than unmowed cover crops during radiation […]
Is it OK to say hearing impaired?
Is it OK to say hearing impaired? Recently, the headline for one of my columns used the term “the hearing impaired” to refer to people with hearing loss. The National Association for the Deaf, for example, is OK with the use of “hard of hearing,” while the Hearing Loss Association of America recommends “people with […]
How far should you be from a steering wheel?
How far should you be from a steering wheel? Sitting too close to the steering wheel interferes with steering, increases fatigue, causes stress and can injure you if the airbag deploys. Drivers should aim for about 10-12 inches between the center of the steering wheel and your sternum (or breastbone). What happens if you sit […]
What is the main magnetic field in MRI?
Did doctors ever endorse cigarettes?
Did doctors ever endorse cigarettes? During the 1920s, Lucky Strike was the dominant cigarette brand. This brand, made by American Tobacco Company, was the first to use the image of a physician in its advertisements. “20,679 physicians say ‘Luckies are less irritating,” its advertisements proclaimed. Did the CDC ever say smoking was safe? This unit—later […]