Which color light is best for sleeping? The researchers found that after 14 days, participants who received light therapy improved their sleep quality and melatonin levels significantly compared to participants not exposed to any light. One 2017 study on mice found that red light at an intensity of 10 lux or higher had the potential […]
What is the amount of force required to maintain the state of motion?
What is the amount of force required to maintain the state of motion? e. depends on the speed. If an object is in motion, then it will stay in motion with those very same motion characteristics. It doesn’t take any force to maintain that same state of motion. What are examples of objects at rest? […]
What can stop friction?
What can stop friction? There are several ways to reduce friction: The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings. What happens if we don’t reduce […]
How do neurons communicate with one another?
How do neurons communicate with one another? Neurons talk to each other using special chemicals called neurotransmitters. Neurotransmitters are like chemical words, sending “messages” from one neuron to another. There are many different sorts of neurotransmitters: some stimulate neurons, making them more active; others inhibit them, making them less active. How do neurons fire? The […]
What can represent a decomposition reaction?
What can represent a decomposition reaction? A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and […]
Are there water tables everywhere?
Are there water tables everywhere? Some water underlies the Earth’s surface almost everywhere, beneath hills, mountains, plains, and deserts. The ground above the water table (the pink area) may be wet to a certain degree, but it does not stay saturated. Where is the most freshwater on Earth? Brazil What is Earth’s largest source of […]
How do you march in place?
Which kind of lenses are in a light microscope?
Which kind of lenses are in a light microscope? Principles. The light microscope is an instrument for visualizing fine detail of an object. It does this by creating a magnified image through the use of a series of glass lenses, which first focus a beam of light onto or through an object, and convex objective […]
What happens when light passes through Coloured glass?
What happens when light passes through Coloured glass? Colored glass is a filter that are largely transparent, but absorb some frequencies of light (some colors). White light goes in and, as it passes through, the glass absorbs some of the light at specific frequencies. Thicker glass will be darker because the light has to travel […]
Are there any medications that alter DNA?
Are there any medications that alter DNA? The FDA just approved the first drug, Luxterna, to cure a rare form of genetic blindness by changing DNA. It’s not the first gene therapy ever approved (it’s third), but it is the first time the FDA has ever approved an injected drug that changes the inherited DNA […]