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A watch glass
i think a test tube
Borosillicate glass is not toxic; it is a safe type of glass. It is used in making many types of products such as cookware and lab equipment.
A separating funnel is a piece of equipment that is used in laboratories to separate two liquids, such as oil and water. It is mostly made of glass.
Primary wire is a type of insulated copper wire used mainly for the electronic connections in automobiles and other low voltage electrical equipment.
A watch glass
A fixed capacitor used in electronic equipment.
It is a electronic scanner. You place your hands on the glass and it scans the fingers for the prints.
One can purchase electronic testing equipment online at Test Equipment Depot, Amtronix and Grainger. One can also buy used electronic testing equipment from Sphere in Canada.
Electronic equipment is made of many substances, including rubber, metals, glass and plastics. Metals in general are non-renewable. In general, plastics are non-renewable as they are derived from oil. Glass is renewable resource, but we are consuming fossil fuels to transform silicon particles (sand) into glass. For this reason, glass should be recycled. More importantly, there has been a huge turnover of electronic equipment, creating hazardous conditions when disposed in incinerators or landfills. The disassembly of electronic equipment and re-use is a growing and important industry. There is a worldwide effort to recycle or carefully dispose of the plastics used in all electronic equipment (from telephones, televisions, cameras, computers, fax machines, ipods, and many others) as there are chemical hazards (heavy metals in particular) to the environment when large quantities enter landfills. You can find out if there are special measures being taken in your community for recycling computer equipment. All the major manufacturers of PC's are aware of "e-waste." I've included some links.
it is a good conductor of electricity
aluminum
They are used in just about all types of electronic equipment.
thermomiter
It is a electronic scanner. You place your hands on the glass and it scans the fingers for the prints.
Electronic relays are used in circuitry for computers, communications equipment, and a multitude of other electronic devices.
The type of glass used in laboratories is BOROSILICATE it is a heat resistant glass. It's main constituents are silica, which is used in normal glass, and boron.