cracking-off machine
11Doorways in the Sand —   …
12Bell P-39 Airacobra — P 39 Airacobra P 39Q 1BE 42 19447, Saga Boy II of Lt. Col. Edwin S. Chickering, CO 357th Fighter Group, July 1943 Role Fighter …
13industrial polymers, major — Introduction chemical compounds used in the manufacture of synthetic industrial materials. In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… …
14technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
15Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
16Plasterwork — refers to construction or ornamentation done with plaster, such as a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. This is also sometimes called pargeting. The process of creating plasterwork, called… …
17EFF DES cracker — The EFF s US$250,000 DES cracking machine contained 1,856 custom chips and could brute force a DES key in a matter of days the photo shows a two sided DES Cracker circuit board fitted with 64 Deep Crack chips In cryptography, the EFF DES cracker… …
18List of Nike missile locations — Nike Missile family, From left, MIM 3 Nike Ajax, MIM 14 Nike Hercules, LIM 49 Nike Zeus. Map of all coordinates from Google …
19Brazing — This article is about the metal joining process. For the cooking technique, see braising. Brazing practice Brazing is a metal joining process whereby a filler metal is heated above and distributed between two or more close fitting parts by… …
20Disc brake — Close up of a disc brake on a car On automobiles, disc brakes are often located with …
