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Flame ionization detector

Flame Ionization Detectors is a common type detector used in gas chromatography. These detectors are best at detecting organic compounds. The first flame ionization detector was developed in 1957 in Australia. The purpose of a FID is to detect co ...

Growth medium

A growth medium or culture medium is a solid or liquid containing nutrients. It is designed to support the growth of microorganisms or cells, or small plants like moss. There are different types of media for growing different types of cells. Ther ...

Inductively coupled plasma mass spectrometry

Inductively coupled plasma mass spectrometry is a type of mass spectrometry that is highly sensitive. It can see a range of metals and several non-metals at concentrations below one part in 10 12. It is based on hooking together an inductively co ...

Laboratory for analysis and architecture of systems

The Laboratory for Analysis and Architecture of Systems, LAAS, is one of the big research laboratories of the French National Center for Scientific Research in Toulouse, France, and is usually named LAAS-CNRS. It is associated with the six foundi ...

Microtiter plate

A microtiter plate is used mostly in laboratories and pharmacies. A microtiter plate could have 6, 24, 96, 384 or even sometimes 1536 wells arranged in rows. Some microplates, used in the industry, have been built with 3456 or sometimes 9600 well ...

Rotary evaporator

A rotary evaporator is commonly used in chemical laboratories to remove solvents by evaporation. The liquid is put in a round-bottomed flask and placed in the device. The rotavap spins and heats the flask and reduces the pressure inside by creati ...

Separating funnel

A separating funnel is a piece of laboratory equipment. It is usually made of glass, and is used to separate two liquids, for example, oil and water. They always separate out, and this is how to remove one from the other:

Spectrometer

A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. The independent variable is usually the wavelength of the light. The variable measured is most often the lights i ...

Static mixer

A static mixer is made up of rectangular plates twisted around at 180° so that they make a double-helix shape. Liquids flow along the curves of the static mixer and also are separated by the smooth sides of the mixer. The mixer can also be turned ...

Test tube

A test tube is a kind of laboratory glassware, composed of a fingerlike length of glass tubing, open at the top, usually with a rounded lip at the top, and a rounded U shaped bottom. They range in size from a couple inches to several inches long, ...

Thermometer

A thermometer is an instrument for measuring or showing temperature. One type of thermometer is a narrow, concealed glass tube containing mercury or alcohol which extends along the tube as it expands. Another type is a digital thermometer, which ...

Lock

For locks on a river or canal, see Lock water transport A lock keeps things closed. It keeps people from opening something, such as a door or a box. Keys open locks. Sometimes an electronic card or secret numbers will open a lock. The verb to loc ...

Combination lock

A combination lock is a lock that is opened with a set of secret numbers instead of a key. Mechanical combination locks usually have a dial that is rotated to three different numbers to open the lock. Electronic combination locks usually have a k ...

Disc-detainer lock

A disc-detainer lock, also called a disc-tumbler, Abloy lock, or simply disc lock is a high-security keyed lock that uses a set of discs similar to those used in a combination lock. The difference is that the discs are rotated by a key instead of ...

Kwikset

Kwikset is an American lock and door hardware manufacturer. Kwikset makes low to medium security residential and light commercial door locks. The Kwikset KW1 keyway is used by many other lock manufacturers. Kwikset recently introduced the SmartKe ...

Lock picking

Lock picking is the art of opening a lock without the key and without damaging or destroying the lock or its door. It is usually used by locksmiths to let people back in who have lost their keys or locked them inside a car or house. Lock picking ...

Locksmith

A locksmith is a person who works with locks, keys and security systems. Locksmith is the profession of a locksmith. Locksmiths fix broken locks, make keys, and install security systems like alarms. In most countries locksmiths must follow a stri ...

Medeco

Medeco is a manufacturer of high-security locks. The name Medeco is short for Me chanical De velopment Co mpany. The Medeco cylinder uses a rotating pin and sidebar design with angled cuts on the keys that rotate the pins, making it more difficul ...

Padlock

A padlock is a type of portable lock that has a U-shaped shackle that will not come apart from the body of the lock unless the correct key is inserted or the correct combination is dialed. The U-shape of the lock allows for a wide variety of uses ...

Safe

The word safe has more than one meaning. In the sport of baseball, a player is safe after he gets to a base without being touched by another player with the baseball. Safe is the state a person or object is in when they are not in danger. A safe ...

Skeleton key

A skeleton key is a key that can open all of the locks in a set. For example, in an office building, each employee would have a key that only opens his/her office, and the manager or owner would have a key that opens all of the offices in that bu ...

Abacus

An abacus is an old tool used for arithmetic. It is still used in some parts of the world, and it is well suited for use in shops and street markets. Sometimes blind people use an abacus, because they can feel the numbers easily. The most common ...

Calculator

A calculator is a machine which allows people to do math operations more easily. For example, most calculators will add, subtract, multiply, and divide. Some also do square roots, and more complex calculators can help with calculus and draw funct ...

Nomogram

A nomogram or alignment chart or abaque, is a graph for calculation. It is a two-dimensional diagram which gives a computation of a mathematical function. The field of nomography was invented in 1884 by the French engineer Philbert Maurice d’Ocag ...

Slide rule

The slide rule, or slipstick, is a mechanical analog computer. The slide rule is used mainly for multiplication and division, and also for "scientific" functions such as roots, logarithms and trigonometry, but usually not for addition or subtract ...

Astrolabe

The astrolabe is a tool using the positions of the stars or sun. It was formerly used in navigation to help explorers and sailors figure out where they were. They found their distance north and south of the equator by measuring the distance of th ...

Barometer

A barometer is an instrument used to measure air pressure. The barometer measures air pressure in various kinds of units including hectopascals. There are various types of barometers such as the water barometer, aneroid barometer, and the mercury ...

Ellipsometry

Ellipsometry is a measurement method used by scientists who want to study solid materials or the surface of solids. It works by shining polarized light on a thin slice of a material and then looking to see how the nature of that light is changed ...

Galileo thermometer

A Galileo thermometer or Galilean thermometer is a thermometer that uses the density of liquids to measure temperature. The thermometer was invented by Galileo Galilei, who had noticed that the density of a liquid changes with temperature. The th ...

Geiger counter

A Geiger counter is an instrument that measures ionizing radiation such as alpha particles, beta particles, or gamma rays. It is best known as a hand held radiation survey instrument, but it can also be used as a bench instrument or permanently i ...

Hydrometer

A hydrometer is an instrument used to measure the specific gravity of liquids; that is, the ratio of the density of the liquid to the density of water it is used as water A hydrometer is usually made of glass and consists of a cylindrical stem an ...

Hygrometer

A hygrometer is a meteorological instrument that is used to measure the humidity of the air. A common way these devices work is by using a material that attracts moisture. This material changes depending on how hydrated it is. A hygrometer has tw ...

Mercury-in-glass thermometer

The mercury-in-glass thermometer was invented by Daniel Gabriel Fahrenheit in Amsterdam. It is a bulb containing Mercury attached to a glass tube of narrow diameter. The volume of mercury in the tube is much less than the volume in the bulb. The ...

Metal detector

A metal detector is a tool a person can use to help find metal nearby. It is useful for finding metal within other objects, for finding metal underground. Most metal detectors will make a sound or have a needle move on a sensor in order to show w ...

Multimeter

A multimeter or a multitester is an electronic measuring tool that is a combination of several tools in one unit. It usually includes an ammeter, voltmeter, and ohmmeter. Digital multimeters are sometimes called DMM too. Modern multimeters can be ...

Rain gauge

A rain gauge is an instrument used by meteorologists and hydrologists to measure liquid precipitation in a certain amount of time. It is usually measured in millimetres. Rain gauge is a meteorological instrument for determining the depth of preci ...

Ruler

A ruler is an instrument of measurement. Rulers measure length. Length is how long or short something is. Most rulers work by having numbers and little lines. Rulers can also be used as a straight edge to draw lines with. Rulers come in many diff ...

Seismometer

A seismometer or seismograph is an instrument that measures motions of the ground, including those generated by earthquakes, nuclear explosions and other sources. Records of seismic waves called seismograms allow us to map the interior of the Ear ...

Speedometer

A speedometer is a type of gauge that shows the speed a vehicle is moving. It usually shows the speed in miles per hour for countries that use the statute mile for distances or Kilometres per hour for countries that use the metric system. Origina ...

Theodolite

A theodolite is a tool for measuring angles between two places from one place. They are usually associated with surveying. They are often mounted on a special kind of tripod. They are usually a telescope on a mount that can move horizontally left ...

Thermocouple

A thermocouple, TC for short, is a device that converts heat directly into electricity. A thermocouple can also work in reverse - using an electric current to transform into heat as well as cold.

Voltmeter

A voltmeter is an instrument used to measure voltage. For instance, a voltmeter can be used to see if there is more electricity left in a battery. The creation of voltmeters became possible when Hans Oersted invented the most simple voltmeter in ...

Weighing scale

For other uses of the word "scale" see scale disambiguation Scales are used to measure the weight of an item. To use a scale, the item which needs to be weighed is put on one side of the scale. Then, weight stones are put on the other side. Once ...

Weapon

A weapon is an object that can be used to attack or injure a person or animal. People have used weapons since very ancient times. While other animals use weapons, in most cases they are attached to the animal. In mans case they are detached and c ...

.45 ACP

The.45 ACP is a type of bullet, made to be used in the M1911 pistol used by the U.S. Military. It was first made by John Browning in 1904, the "ACP" in the name stands for "Automatic Colt Pistol". It was the standard for handguns in the U.S. mili ...

Arrow

An arrow is a projectile fired with a bow. A bow and arrow is a weapon used before medieval times and later. For thousands of years, people all over the world have used bows and arrows for hunting and for defense. Arrows have a sharp point at one ...

Ballista

The ballista was one of the first artillery weapons used by the Ancient Greeks. The ballista was invented around 400 BC in the Greek town of Syracuse. It was one of the first catapults, and shot very large and heavy spears far distances. The ball ...

Battering ram

A battering ram is a siege engine used in the past. It was used to break open the stone walls of castles or splinter their wooden gates. In its simplest form, a battering ram is just a large, heavy log carried by several people and banged against ...

Battle-axe

A battle-axe is an axe designed for combat. Battle axes were versions of utility axes. Many were suitable for use in one hand, while others were larger and were used two-handed. Axes designed for warfare ranged in weight from just over 0.5 kg to ...

Bazooka

A Bazooka is a very powerful weapon that shoots a rocket. It is a small and easily carried and sits on the shoulder to fire. It can also fire armour piercing missiles. The word Bazooka comes from a musical instrument made of pipes invented by an ...

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Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

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