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Hair shafts are primarily made up of a protein called keratin, which is synthesized in specialized hair follicles in the skin. Keratin provides strength and structure to the hair shaft, making it resilient to everyday wear and tear. Pigments, such as melanin, also contribute to the color of the hair shaft.
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What is a heating element do in a hair dryer?
A heating element in a hair dryer generates heat when electricity passes through it. This heat is then used to dry and style hair by evaporating moisture from the hair shafts.
What shafts must be securely held in position against endwise thrust?
Shafts that must be securely held in position against endwise thrust include keyless shafts, splined shafts, threaded shafts with nuts or set screws, and tapered shafts with locking devices such as keys or collars. These mechanisms prevent the shaft from moving axially due to applied loads or vibrations.
Whats the difference between a graphite and a steel shaft for golf clubs?
Graphite shafts transmit fewer vibrations up the shaft to the golfer's hands than do steel shafts. This might be good or bad, depending on your skill and your desire. You might want that added feedback that steel shafts offer - or you might be tired of your hands stinging so much on mis-hit shots. The biggest and by far most important difference between steel and graphite shafts is this: graphite shafts are lighter than steel shafts. So clubs that have graphite shafts will be lighter than otherwise identical clubs that have steel shafts. The difference in weight between graphite shafts and steel shafts will translate, for most golfers, into an additional 2-4 mph of swing speed with graphite. And that could mean an extra 6-12 yards of distance with a graphite shaft, compared to a steel shaft. Steel shafts are less expensive than graphite, so the same set of clubs will cost less with steel shafts than with graphite shafts. Steel shafts were once considered much more durable than graphite. That's not s
Why shaft are circular?
Shafts are usually made circular because a circular shape provides the most efficient distribution of stress and load, making them better suited to withstand torsional forces. Additionally, circular shafts are easier to manufacture and maintain compared to other shapes.
What are the differences between a hollow shaft and a solid shaft?
A hollow shaft has a empty space inside, while a solid shaft is completely filled. Hollow shafts are lighter and can be more flexible, while solid shafts are stronger and stiffer. Hollow shafts are often used when weight is a concern, while solid shafts are used when strength is more important.
what type of gland lubricates the hair shafts?
The sebaceous gland is responsible for lubricating the hair shafts. It produces an oily substance called sebum, which helps to moisturize and protect the hair and scalp.
What are hair shafts composed of?
Hair shafts are composed of a protein called keratin. Keratin is a tough, fibrous protein that provides strength and structure to the hair shaft. Additionally, the hair shaft also contains melanin, a pigment that gives hair its color.
Does round hair shafts result in wavy hair?
Hair shafts differ in size, shape, and color. In the eyebrows, they are short and stiff, but on the scalp they are longer and more flexible. Elsewhere on the body they are nearly invisible. Oval-shaped hair shafts produce wavy hair. Flat or ribbonlike hair shafts produce kinky or curly hair. Perfectly round hair shafts produce straight hair. The different types of melanin-yellow, rust, brown, and black-produced by melanocytes at the follicle base combine to create the many varieties of hair color, from the palest blonde to the richest black. With age, the production of melanin decreases, and hair color turns gray.Read more: http://www.faqs.org/health/Body-by-Design-V1/The-Integumentary-System-Design-parts-of-the-integumentary-system.html#ixzz0W02WYyMI
Is it natural for 2 strands of hair to grow out of the same follicle?
Could happen. Each hair follicle of a sheep has 3 hair shafts (wool).
Is there a shampoo that you can clean your hair out to pass a drug hair test?
No. The drug or drugs are found in deep in the hair shafts and can not be removed. The shafts show what drug(s) have been taken over a period of time.
Is using heat on your hair bad?
Yes it is. Too much heat will eventualy weaken hair shafts and folicles and cause them to fall off.
What is a heating element do in a hair dryer?
A heating element in a hair dryer generates heat when electricity passes through it. This heat is then used to dry and style hair by evaporating moisture from the hair shafts.
Is Aquage conditioner good for sun damaged hair?
Known as Aquage Healing Conditioner, this product is made with sea botanicals which are very good for repairing and strengthening damaged hair. The healing components of the conditioner penetrate deep into the hair shafts to add moisture and heal damage done to the hair, including sun damage.
Why does hair make static?
Static electricity is created by friction. Hair has a large surface area and is subjected to friction by brushing or combing. Equally important is the fact that (dry) hair is non-conductive, so the charge on the surface has nowhere to go. Static charge on hair is particularly noticeable (and bothersome) because the individual hair shafts are very light, so when the charges on the surfaces repel each other, the hair shafts stand out from the head.
Engine counter balance shaft?
what are counterbalance shafts made from
What things have an universal joint in it?
Drive shafts, PTO shafts, Steering shafts, Axle shafts,
Why do girls cut their hair?
because long hair is silly on girls (short hair is much better) and it gets really hard to brush. Very long hair is uncomfortable, impractical and out of fashion. If hair is never cut, broken, split and bent hair shafts accumulate.
