How can a person detect infrared rays without an instrument


Asked by wiki @ in Physics viewed by 45 People


How can a person detect infrared rays without an instrument?

Answered by wiki @



So we want to know how can we detect infrared rays without an instrument. Infrared rays or heat, are a part of electromagnetic spectrum. We have specialized nerve cells in our skin called thermoreceptors that can detect differences in temperature that are produced by infrared part of EM spectrum.

Do you know the better answer?

Similar Questions

Why was drawing so important early on in history

Asked by wiki @ in Arts viewed by 107 persons

Why are drawing so important early on in history

What is the measure of c 38 76 90 152

Asked by wiki @ in Mathematics viewed by 147 persons

What is the measure of C ? 38° 76° 90° 152°

How much does a 60 kg person weigh on mars

Asked by wiki @ in Mathematics viewed by 163 persons

A person who weighs 150 pounds on Earth would weigh 56 1/2 pounds on Mars. Set up a proportion and solve using means and extremes to determine how much a …

Is the second mover advantage always a good business strategy

Asked by wiki @ in Business viewed by 127 persons

Late-mover advantages (or first-mover disadvantages) are not likely to arise when: Multiple Choice a. Opportunities exist for a blue-ocean strategy to invent a new industry or distinctive market segment that …

What do biologists do when they visit france algebra worksheet

Asked by wiki @ in Biology viewed by 776 persons

What do biologists do when they visit france math worksheet answers?

Which is a carbohydrate monomer

Asked by wiki @ in Biology viewed by 67 persons

Which is a carbohydrate monomer? A. Glucose B. Sucrose C. Glucagon D. Glycogen

A health literate individual knows how to find health information

Asked by wiki @ in Health viewed by 151 persons

A health literate individual knows how to find health information true or false?​

What was the purpose of the toleration act of 1649

Asked by wiki @ in Social Studies viewed by 26 persons

What was the purpose of the Toleration Act of 1649? It guaranteed freedom of worship to the Protestants in Maryland. It granted religious freedom to all who professed a belief …

A story that illustrates the saying look before you leap

Asked by wiki @ in English viewed by 91 persons

Write a story to illustrate the saying "look before you leap​

Which part of an optical microscope contains a magnifying lens

Asked by wiki @ in Biology viewed by 304 persons

Use the drop-down menus to match each phrase below with the type of microscope it describes. magnifies objects in steps is the type that was used to observe the first …

What is the main goal of the president's challenge program

Asked by wiki @ in Health viewed by 136 persons

What is the main goal of the Presidents Challenge Program

Starch is broken down into glucose by the process of

Asked by wiki @ in Biology viewed by 67 persons

Amylase increases the rate at which starch is broken down into glucose. What kind of molecule is amylase? . A) lipid . B)enzyme . C)carbohydrate. D) nucleic acid

An antimicrobial chemical used on the skin is usually called

Asked by wiki @ in Biology viewed by 190 persons

An antimicrobial chemical used on the skin is usually called a(n) ____________.

5.2 more than the product of 7 and a number

Asked by wiki @ in Mathematics viewed by 157 persons

5.2 more than the product of seven and a number

Which of the following is not part of a nucleotide

Asked by wiki @ in Biology viewed by 177 persons

Which of the following is not part of a nucleotide in a DNA molecule?

What was the name given to ronald reagan's foreign policy

Asked by wiki @ in History viewed by 122 persons

What was the name given to Ronald Reagan’s foreign policy? Select one from the choices given: the Reagan Affair . . the Reagan Controversy . . the Reagan Doctrine . …

How to find original price with sale price and discount

Asked by wiki @ in Mathematics viewed by 176 persons

Find the original price. Discount: 20% Sale price: $75

How do we figure out the value of a variable

Asked by wiki @ in Mathematics viewed by 174 persons

How do we figure out the value of a variable? A )Add up all the numbers in the equation. B )Multiply the variable by itself. C )Isolate the variable on …

When are companies likely to use a job costing system

Asked by wiki @ in Business viewed by 245 persons

Which costing system​ (Process Costing or Job​ Costing) would the following companies employ to determine the cost of its​ products? Warner Bros. Motion Pictures A. Job Costing B. Process Costing …

16 times 40

Asked by wiki @ in Mathematics viewed by 112 persons

16 times what equals 40

Using genetic crosses to analyze a stickleback trait lab answers

Asked by wiki @ in Biology viewed by 316 persons

Fruit flies in the wild have brown bodies, red eyes, and straight wings. Many variations have been produced and used to study genetics. Consider the data below. Data 1: Traits …

If you are parking on a hill make sure to

Asked by wiki @ in English viewed by 103 persons

If you are parking on a hill make sure to: A-It does not matter how your wheels are positioned B-Turn your wheels into the curb C-Turn your wheels away from …

Which of the following statements is true of persuasive messages

Asked by wiki @ in Biology viewed by 109 persons

2. Which of the following statements is true of persuasive messages? A. People tune out repetitious messages, so they quickly lose effectiveness. B. Messages presenting a one-sided argument tend to …

How was the neolithic period different from the paleolithic period

Asked by wiki @ in Arts viewed by 111 persons

How was the neolithic period different from the paleolithic period

What can form as a result of a chemical reaction

Asked by wiki @ in Chemistry viewed by 134 persons

What can form as a result of a chemical reaction?

How to find perimeter of a triangle on a graph

Asked by wiki @ in Mathematics viewed by 102 persons

How do you find a perimeter of a triangle on a graph

Who identified microorganisms as the cause of infection in people

Asked by wiki @ in Medicine viewed by 232 persons

41 Question # 10 Who identified microorganisms as the cause of infection in people?

A factor that does not complicate capital investment analysis is

Asked by wiki @ in Business viewed by 288 persons

All of the following are factors that may complicate capital investment analysis except a.sunk costs b.changes in price levels c.possible leasing alternatives d.federal income tax ramifications

Which statement accurately describes the supremacy clause of the constitution

Asked by wiki @ in History viewed by 40 persons

Which statement accurately describes the supremacy clause of the Constitution? A. It says that state laws are superior to federal laws. B. It says that the Constitution can be amended …

List four reasons why paul wrote the book of romans

Asked by wiki @ in History viewed by 150 persons

List four reasons why Paul wrote the book of Romans.

Most viewed questions in Physics


A 0.25 kg arrow with a velocity of 12m s

Asked by wiki @ in Physics viewed by 780 persons


Uranium 235 undergoes an alpha decay to produce thorium 231

Asked by wiki @ in Physics viewed by 768 persons


A golf club hits a stationary 0.050 kilogram golf ball

Asked by wiki @ in Physics viewed by 662 persons



Water waves in a small tank are 06 m long

Asked by wiki @ in Physics viewed by 648 persons


A tank of water in the shape of a cone

Asked by wiki @ in Physics viewed by 606 persons


In which electric circuit would the voltmeter read 10 volts

Asked by wiki @ in Physics viewed by 606 persons



A 90 kg person rides a spinning amusement park ride

Asked by wiki @ in Physics viewed by 595 persons


How many times does your heart beat during your lifetime

Asked by wiki @ in Physics viewed by 582 persons


The initial speed of a cannonball is 0.20 km s

Asked by wiki @ in Physics viewed by 577 persons



All of the following are advantages of outsourcing except it

Asked by wiki @ in Physics viewed by 561 persons


A 5.8 x 10 4 watt elevator motor can lift

Asked by wiki @ in Physics viewed by 546 persons


A 60 kilogram student jumps down from a laboratory counter

Asked by wiki @ in Physics viewed by 541 persons



7 types of electromagnetic waves from lowest to highest frequency

Asked by wiki @ in Physics viewed by 499 persons


A golfer hits a ball at an angle of 25

Asked by wiki @ in Physics viewed by 478 persons


Which of the following statements about diffusion is true

Asked by wiki @ in Physics viewed by 457 persons