vacuum laser welding
91Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …
92Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
93Punch (tool) — For punches used in punch presses, see Punching. A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Punches are used to drive objects, such as nails, or to form an… …
94Needlegun scaler — A U.S. Navy Seaman uses a needle gun to remove old paint and corrosion aboard USS Kitty Hawk.[1] A needlegun scaler or needle gun is a tool used in metalwork applications as diverse as home repair, automotive repair and shipboard preservation …
95Beam compass — A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses.[1] The instrument can be as a whole, or made on the spot with individual sockets… …
96Indium — Not to be confused with Iridium. cadmium ← indium → tin Ga ↑ In ↓ Tl …
97Skin effect — Skin depth redirects here. For the depth (layers) of biological/organic skin, see skin. Skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor with the current density being largest near the… …
98Spark gap — A spark gap consists of an arrangement of two conducting electrodes separated by a gap usually filled with a gas such as air. When a suitable voltage is supplied, a spark forms, ionizing the gas and drastically reducing its electrical resistance …
99Thyratron — A thyratron is a type of gas filled tube used as a high energy electrical switch and controlled rectifier. Triode, Tetrode and Pentode variations of the thyratron have been manufactured in the past, though most are of the triode design. Gases… …
100Connections (TV series) — Not to be confused with the Canadian organized crime documentary, Connections (Canadian documentary). Connections James Burke, the creator and host of Connections, explains the Haber Bosch Process Genre …
