The combination of compression and cold has been clinically proven to be more effective than ice therapy alone.1 Cold alleviates pain and reduces swelling by restricting blood flow to the area, and compression also reduces swelling and allows the therapeutic cold to penetrate deeper and last longer.
http://www.xinrunelectricsz.co....m/water-cooling-matt

Clamp styles include C-clamps, bar clamps, pipe clamps, deep-throat bar clamp, one-handed bar clamps, spring clamp, ratchet-action band clamp, mitre clamp, and hand screws. Bar clamps have adjustable arms that are easily widened or narrowed to fit the workpiece and, therefore, requires fewer turns of the screw spindle, compared to a C-clamp, to hold the piece tightly.
http://www.workprotool.com/han....d-tools/mechanics-to

An important feature of most electric toothbrushes is a wide, comfortable handle for ease of grip and several brush head designs to fit comfortably into mouths of any size. For example, models for children will have smaller bristle heads compared to toothbrushes designed for adults. Also, the softness of bristles can be customised. If you have sensitive teeth, you may want to opt for softer bristles.
http://www.usekang.net/electri....c-toothbrush/kids-el

Other useful PTFE properties are its high flexural strength, even in low temperatures, high electrical resistance and dielectric strength, resistance to water (owing to fluorine's high electronegativity), and low coefficient of friction. PTFE's density is also very high, at 2200 kg/m3.
http://www.ptfeliners.com/ptfe....-basket/non-stick-pt

Automation has also eliminated a lot of manual tasks that used to be associated with food processing. In other words, it's the machines that are doing all of the heavy lifting, not us. There's less need for workers to carry out back-breaking manual handling tasks. There's less of a physical strain on workers so the likelihood of OHS issues arising also decreases.
http://www.nbexact.com/canned-....food-production-line