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Crucible

In chemistry, a crucible is a kind of laboratory equipment that is usually a small cup, about the size of a shot glass, made of porcelain or non-reactive metal. Crucibles are used to heat chemical compounds to very high temperatures using a gas b ...

Evaporating dish

An evaporating dish is used to evaporate solutions - that is, to turn them from a liquid state into a gaseous state. They are often made from ceramics.

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 ...

Fractionating column

A fractionating column is a device often used in chemistry to separate low-boiling point liquids from high-boiling point liquids during fractional distillation. A large outdoor fractionating column is a fractionating tower.

Fume hood

A fume hood or fume cupboard is a large piece of scientific equipment common to chemistry laboratories. Fume hoods stop a person coming into contact with hazardous fumes. They contain an air pump that sucks fumes away from the person using them. ...

Graduated cylinder

A graduated cylinder is a piece of laboratory glassware used to measure the volume of liquids. It is used to accurately measure the volume of chemicals for use in reactions. Often, the biggest graduated cylinders are made of polyethylene or other ...

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 ...

Petri dish

A petri dish is a small dish shaped like a cylinder. Scientists use it to grow cells from animals, fungus, and diseases so they can study them. They are usually made of glass or plastic. The glass ones can be used again if they are heated at 160° ...

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 ...

Round-bottom flask

Round-bottom flasks are types of flasks having spherical bottoms used as laboratory glassware. They are used mostly for chemical or biochemical work. Today, they are usually made of heat-resistant borosilicate glass. There is at least one tubular ...

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 ...

Volumetric pipette

A volumetric pipette is a kind of pipette which allows you to find the volume of a solution very accurately. It can also be known as a bulb pipette or a belly pipette.

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 ...

Assa Abloy

Assa Abloy is the worlds largest lock and door hardware company. Assa Abloy was formed in 1994 when Swedish company Assa purchased Finnish company Abloy. Assa Abloys products range from low-security products such as Yale to medium-security locks ...

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 ...

Door bolt

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 ...

Master Lock

Master Lock is one of the leading lock manufacturers. Master Locks products include padlocks, door locks, and lock hasps. Master Lock was founded in 1921 by Harry Soref. Master Lock is famous for their television ad showing a Master Lock #15 surv ...

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 ...

Sargent and Greenleaf

Sargent and Greenleaf is a lock manufacturer. It is not to be confused with Assa Abloys Sargent brand. Sargent and Greenleaf is well-known for their safe locks, although they also make other lock products including military-grade padlocks.

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 ...

Graphing calculator

A graphing calculator is a calculator that is specially made to draw graphs. Also, graphing calculators can do many advanced tasks, such as solving equations with one or more variables. Graphing calculators are usually bigger and more expensive t ...

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 ...

Anemometer

An anemometer is a device used to measure wind speed. It is found in most weather stations. The word comes from the Ancient Greek word ἄνεμος, meaning wind. It describes any airspeed measurement instrument used in meteorology or aerodynamics. Leo ...

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 ...

Cable tester

Cable tester is a device used to test cables. It finds breaks, faults or cracks in cabling. Such devices may use electrical pulses or echoes for testing.

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 ...

Lidar

After the invention of laser, first tool similiar to a lidar was made in 1961 at Hughes Aircraft Company. It was first intended to track satellites. It was originally called "Colidar", acronym for "COherent Light Detecting And Ranging". One of fi ...

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 ...

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Chaff (countermeasure)

Directed-energy weapon

Escopetarra

Flame fougasse

Flamethrower

Flare (countermeasure)

Folding-Fin Aerial Rocket

Gada (weapon)

Garrotte

Ground Combat Vehicle

M129 Grenade launcher

List of Russian weaponry

Weapon of mass destruction

Jack plane

Plane (tool)

Chalk

Dvorak Simplified Keyboard

Ancient Egyptian agriculture

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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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