Dr. Jeff Bohmer, Medical Director of the Emergency Department at Northwestern Medicine Central DuPage Hospital, joins Bob Sirott to talk about who can get the COVID vaccine, why nearly half of ...

Over on YouTube our hacker [VIP Love Secretary] shows us how to make a simple MOSFET tester. This is a really neat, useful, elegant, and simple hack, but the video is kind of terrible. We found ...

An ammeter is always connected in series with the component whose current you want to measure. This means it is placed ...

There are many tools available to check your heart rate, but if you don’t have one, you can still obtain an accurate reading ...

Find out how a digital technique performs multiplication on two bitstreams and avoids the cost of the analog multiplier.

Proper precision calibration resistors are expensive and usually bulky, often in a large box or can. These are overkill for low-cost handheld digital multimeters (DMMs) and LCR Meters, especially when ...

We may receive a commission on purchases made from links. With most power tool manufacturers and even certain state governments like California pivoting away from gasoline power in devices utilizing ...

Don't throw out your expired COVID tests just yet. Here's how to find out if the expiration date has been extended. Katie covered all things how-to at CNET, with a focus on Social Security and notable ...

The FDA has extended the shelf life for some COVID-19 tests. Now that allergy season is here, many are finding themselves with symptoms asking: Is it allergies or a cold? COVID? Something else? Since ...

If you do an FTP test and your power meter tells you your FTP is one million billion trillion watts, and scales accordingly, it’s still going to be a valuable training tool, though you may need the ...

This basic non-contact transducer is often used to measure AC currents. Accurate measurement of static and dynamic current flow in a conductor is a common requirement in many circuits and systems.