How is a black eye caused? A black eye is the appearance of bruising around the eyes. It’s usually the result of trauma to the head or face, which causes bleeding beneath the skin. When the small blood vessels, or capillaries, beneath the skin break, blood leaks into the surrounding tissue. This is what causes […]
Do hearing aids just amplify sound?
Do hearing aids just amplify sound? Hearing aids work by amplifying sound through a three-part system: The microphone receives sound and converts it into a digital signal. The amplifier increases the strength of the digital signal. The speaker produces the amplified sound into the ear. What are the benefits of hearing aids? Hearing aids relieve […]
What does the United States flag stand for?
What does the United States flag stand for? The stripes represent the original 13 Colonies and the stars represent the 50 states of the Union. The colors of the flag are symbolic as well; red symbolizes hardiness and valor, white symbolizes purity and innocence, and blue represents vigilance, perseverance and justice. What is raising the […]
What eats green tomatoes at night?
What eats green tomatoes at night? Hornworms come out at night and eat tomato by tunneling into fruit and stems. Also, they decimate all the leaves off the plant. In one night hornworms can destroy mature tomato plants. What critters eat tomatoes? What Animal Will Eat Tomato Plants? Rabbits. Rabbits are neat eaters that nip […]
Are all puppies eyes blue when born?
How does hairdressing affect the environment?
How does hairdressing affect the environment? The most notable environmental issues for salons are: The use of chemical products (dyes, bleaches, solvents) Air pollution (odours) Water use and wastewater disposal. Why are hair stylist important? Hairstylists offer a wide range of hair services, such as shampooing, cutting, coloring, and styling, according to the U.S. Bureau […]
Can drywall dust give you a headache?
Can drywall dust give you a headache? Toxins in dust and allergens, such as dust mites, aggravate allergies and asthma, but can affect many more people with fatigue, lack of concentration, eye and skin irritation, dizziness and headaches. Is plaster dust toxic? Plaster dust (bagged material) Can cause irritation to the respiratory system, which in […]
What does diffraction grating do to light?
What does diffraction grating do to light? In optics, a diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams travelling in different directions. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts […]
Can birth control cause a false negative pregnancy test?
Can birth control cause a false negative pregnancy test? Though pregnancy tests are highly accurate, there’s still room for error. A few issues can affect your results, but your birth control pill isn’t one of them. The hormones in your birth control pill don’t affect a test’s ability to detect hCG. Can progesterone cause negative […]
Why are planes made out of aluminum?
Why are planes made out of aluminum? Aluminum is ideal for aircraft manufacture because it’s lightweight and strong. Aluminum is roughly a third the weight of steel, allowing an aircraft to carry more weight and or become more fuel efficient. Furthermore, aluminum’s high resistance to corrosion ensures the safety of the aircraft and its passengers. […]