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Mechanical Power Transmission
Power transmission is a process required in almost every piece of machinery. From the tiny motors in pop-up selfie cameras to the innovative transmission lines of the Large Hadron Collider, power transmission applications are all around us. We use power transmission methods to transmit power from the prime mover to the driven machinery for its function. There are four main types of power transmission – mechanical, electric, hydraulic and pneumatic. In this article,
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Should we wear a face covering or mask when we go out in public ?
Should we wear a face covering or mask when we go out in public ?
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The CDC recommends wearing masks in public when other social distancing measures are difficult to maintain. Effective February 2, 2021, masks are required on planes, buses, trains, and other forms of public transportation traveling into, within, or out of the United States and in U.S. transportation hubs such as airports and stations. Read more about the CDC’s Mask Requirement. The FDA has authorized the emergency use of face masks, including cloth face coverings, that meet certain criteria for use as source control by the general public and health care personnel in accordance with CDC recommendations during the COVID-19 public health emergency. The FDA also regulates other medical devices, including personal protective equipment (PPE) such as surgical masks and N95 respirators. The CDC recommends that PPE should be reserved for use by health care workers, first responders, and other frontline workers whose jobs put them at much greater risk of acquiring COVID-19