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2. Instruments used in radiology - Wikipedia

   en.wikipedia.org/wiki/Instruments_used_in_radiology

   uses ultrasound to produce images from within the body; video link: X-ray: uses X-rays to produce images of structures within the body; video link: Contrast media for X-rays: to provide a high contrast image of the details of the viscera under study; e.g. salts of heavy metals, gas like air, radio-opaque dyes, organic iodides, etc ...

3. The Wolseley Sheep Shearing Machine Company - Wikipedia

   en.wikipedia.org/wiki/The_Wolseley_Sheep...

   Sir,—It may interest some of your readers to know how sheep are shorn by machines. Before writing about them, it will be as well to say something of hand shearing. Shearing on a sheep station is the one busy time of the year; and if there are from 30,000 to 50,000 sheep to get through, there will be 16 or 20 shearers.

4. Ultrasound - Wikipedia

   en.wikipedia.org/wiki/Ultrasound

   Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure, ultrasonic waves have wavelengths of 1.9 cm or less. Ultrasound can be generated at very high frequencies; ultrasound is used for sonochemistry at frequencies up to multiple hundreds of kilohertz.

5. Full body scanner - Wikipedia

   en.wikipedia.org/wiki/Full_body_scanner

   Full body scanner in millimeter wave scanners technique at Cologne Bonn Airport Image from an active millimeter wave body scanner. A full-body scanner is a device that detects objects on or inside a person's body for security screening purposes, without physically removing clothes or making physical contact.

6. Cross-device tracking - Wikipedia

   en.wikipedia.org/wiki/Cross-device_tracking

   Ultrasound, which is shorter wavelengths greater than or equal to 20 kHz, enables the rapid transmission of data necessary for cross-device tracking to occur. [3] Another integral component of cross-device tracking is the usage of audio beacons. Audio beacons are beacons that are embedded into ultrasound, so they cannot be heard by humans. [3]

7. Glossary of sheep husbandry - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_sheep_husbandry

   Rollover sheep handler for crutching, foot inspection and paring, general husbandry, udder inspection etc. Springer - a ewe close to lambing. Stag – a ram castrated after about 6 months of age. Staple – a group of wool fibres that formed a cluster or lock. Store – a sheep (or other meat animal) in good average condition, but not fat ...