A brush post mill is used to generate electricity in Cleveland, Ohio; in 1891 La Cour windmill is used to generate electricity. Josephine Cochrane invents and patents the first commercial dishwashing ...

This special series features expert content developed by Medscape in collaboration with the National Institute for Occupational Safety and Health (NIOSH). It is designed to deliver NIOSH's ...

The reason? The Civil War was over, and Black men were legally allowed to vote and helped Republicans win in 1870. Two years later, Louisiana Democrats were determined to take back the state by ...

I also compiled highly rated NIOSH-approved N95s that are available online. (Note that most people use “mask” and “respirator” interchangeably, but when the CDC and medical professionals ...

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In the 1870s, inspired by the rising indignation of Methodist and Baptist clergymen, and by distraught wives and mothers whose lives had been ruined by the excesses of the saloon, thousands of ...

Newly emancipated blacks in the South began to exercise their right to vote, but with the end of Reconstruction in the 1870s, their rights and liberties began to crumble under the threat of violence.

Now the National Institute for Occupational Safety and Health (NIOSH) has released free resources to help prevent heat-related illnesses this summer. One of the key resources NIOSH provides is the ...

It later ended the EUA because NIOSH-approved respirators were no longer in short supply. How effective are KN95 masks? “KN95 masks are quite effective, especially if they’re worn correctly ...

This title is part of a longer publication history. The full run of this journal will be searched. TITLE HISTORY A title history is the publication history of a journal and includes a listing of the ...