If you need to create a high vacuum, there are basically two options: turbomolecular pumps and diffusion pumps.

William Cornwell does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Apple Watch can now alert you to potential high blood pressure. Here’s how to enable hypertension alerts and which models support it. Apple has rolled out hypertension alerts for the Apple Watch, ...

The proportion of kids with high blood pressure fell by nearly 11% over five years at schools with universal free meals The meals are healthier, potentially improving kids’ weight as well as their ...

Nearly half of American adults struggle with high blood pressure, but a breakthrough study suggests the solution isn't cutting sodium. Scientists found that balancing sodium intake with potassium-rich ...

NY Attorney General Letitia James said three companies were selling skin-lightening creams and other cosmetics that contain illegal levels of mercury.

A Catholic bishop in Peru’s Amazon is warning that mercury from illegal gold mining is contaminating rivers, fish and people ...

A Minnesota man is accused of posing as a high school student so he could play on the football team. White Bear Lake Area High School principal Russell Reetz wrote in a letter to parents that an adult ...

See a photo you like? Click here to see these and more and to purchase high-quality prints or a keepsake photos on mugs, buttons, greeting cards and more. Foothill 14, San Leandro 7 See a photo you ...

The Odisha government has placed 18 districts on high alert following warnings from the India Meteorological Department (IMD) about heavy rainfall triggered by a new low-pressure area over the Bay of ...

Fourteen Montgomery County high schools have been rated among the top 100 Pennsylvania high schools in a new ranking by a national media outlet. This summer U.S. News & World Report released its ...

Plastic 4-pin base, top contact, S-shaped envelope. Donor’s card reads: “Half-wave mercury vapor rectifier made by Westinghouse for the US government during World War II. This tube is the Westinghouse ...