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The predominant proteins in hair are from the family of keratins. Protein molecules are built from amino acids. In a hair strand, the keratin molecules contain a large number of a particular amino acid called cysteine. Each cysteine in the keratin molecule is a potential attachment point, where the keratin molecule can be tightly connected to another cysteine, forming a chemical bond called a cross-link. The keratins in hair have many such cross-links, making a hair strand strong and flexible. There are also many weaker bonds, called hydrogen bonds between the keratin molecules. Hydrogen bonds can be disrupted by water, including water vapor in the air. In fact, this is what causes hair strands to expand in moist air and to contract in dry air.
A single lock will stretch about 2.5% percent as the humidity goes from 0 to 100 percent. While that's only a smidgen of length, the rate of this change is very dependable, so it's possible to obtain highly accurate humidity readings by measuring these tiny shifts.
So the Principle in question is the chemical property of hair protein molecules (or disruption of hydrogen bonds between keratin molecules by water)
What else can I help you with?
How can wool be substituted for human hair in a hygrometer?
Wool can be substituted for human hair in a hygrometer because both materials absorb moisture from the air at different rates, causing them to change length as humidity levels fluctuate. This change in length can be measured and used to determine the relative humidity in the environment. Wool's properties make it a suitable alternative to human hair for this purpose.
What is least count in hygrometer?
The least count of a hygrometer typically refers to the smallest change in humidity that can be measured by the device. This value is determined by the precision and resolution of the hygrometer's sensors and display, and can vary depending on the specific model and design of the hygrometer.
Benefits principle differ from the ability to pay principle?
The benefits principle states that individuals should pay taxes in proportion to the benefits they receive from government services. In contrast, the ability-to-pay principle suggests that individuals should pay taxes based on their ability to pay, regardless of the benefits they receive. The benefits principle focuses on equity based on usage, while the ability-to-pay principle considers fairness in relation to earnings or wealth.
What is the Bolinger Principle?
The Bollinger Principle is a technical analysis tool created by John Bollinger. It is based on the concept of trading bands that fluctuate above and below a simple moving average. The principle is used to identify potential entry and exit points in the financial markets based on volatility and price momentum.
How does a hygromenter work?
A hygrometer measures humidity in the air by detecting changes in electrical resistance or capacitance of a substance like hair, paper, or a synthetic polymer as it absorbs or releases water vapor. These changes are then converted into a humidity reading displayed on the device.
A hygrometer uses hair to measure?
humidity
As a science fair project using a hygrometer to test which hair recates quicker to the hair hygrometer would pool hair verse chemical treated hair work?
Are you talking about billiards?
Can wool yarn be substituted for the human hair in a hygrometer?
Yes , wool yarn can be substituted for the human air in a hygrometer.
What is the instrument is used for measuring humidity of hair?
Humidity of AIR.It is called a Hygrometer
What is the history of a hygrometer?
In the 15th century Leanardo da Vinci built the very fist hygrometer. Francesco Folli invented a more practical hygrometer in 1664. In 1783 Horace Benedict de Sausser built the first hair hygrometer. John Frederic Daniell invented a dew-point hygrometer in 1820. Hair hygrometers weren't in regular use until the 1960s.
What is the history of the hygrometer?
In the 15th century Leanardo da Vinci built the very fist hygrometer. Francesco Folli invented a more practical hygrometer in 1664. In 1783 Horace Benedict de Sausser built the first hair hygrometer. John Frederic Daniell invented a dew-point hygrometer in 1820. Hair hygrometers weren't in regular use until the 1960s.
How was the Hygrometer used?
hygrometer used to measure density of relative humidity in air by using a sensory element such as a hair
Which instrument measures relative humidity without thermometers?
A hair hygrometer.
Which form is NOT based on the principle of contrast?
Strophic form is based on the principle of repetition . The correct answer is binary form. Binary form is not based on the principle of repetition . It is based on the principle of contrast .
How can wool be substituted for human hair in a hygrometer?
Wool can be substituted for human hair in a hygrometer because both materials absorb moisture from the air at different rates, causing them to change length as humidity levels fluctuate. This change in length can be measured and used to determine the relative humidity in the environment. Wool's properties make it a suitable alternative to human hair for this purpose.
Who invented the first hygrometer?
Who invented the first hygrometer?
Relative humidity can be measured with a?
psychrometer or a hygrometer.
