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Testing Pulley Efficiency

When using pulley systems, mechanical advantage is expressed as the ratio of the amount of output force to the amount of input force. For example, a '3:1' system has three times the amount of output force as the input force. If a person pulls with 10 units of force, this system will apply 30 units of force to the load. This allows a person to lift a load much greater than would be able to be lifted without the help of the system. This is the mechanical advantage. Rope rescue, rope acces...

Do you trust your equipment quality?

Personal protective equipment used to be purchased directly from either the manufacturer or specialty stores but is now widely available on the Internet from unknown sources. There is a wide range of products available now but how do you know the quality of what you are buying? The products might look the same as well known name brand products but are they? There are a few major problems we have found with equipment available online with the most common being imitations of well known products ...

Thailand Royal Forest Department Arborist Training

Sea Air Thai is proud to be working together with the Thai Government's Royal Forest Department to improve the tree climbing skills of forestry staff and scholars. The Royal Forest Department was first established in 1896 and is in charge of monitoring, researching, and conserving the forest land of Thailand. As the leaders of tree care in Thailand, in 2016 the Thai government established a policy to improve the urban tree care skills of the staff of the Royal Forest Department. As part of t...

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