Older adults feel better than young people despite COVID risks

Older adults report better emotional well-being than younger people, even during a pandemic that is placing them at greater risk than any other age group, according to a new survey. Older adults reported feeling calm more often than younger folks, and were less likely to report negative emotions like anxiety compared to people their junior,…

Your pupils show whether you’ll remember stuff

Researchers can now predict whether an individual will remember or forget based on their neural activity and pupil size. “As we navigate our lives, we have these periods in which we’re frustrated because we’re not able to bring knowledge to mind, expressing what we know,” says Anthony Wagner, a professor in the social sciences at…

Make This Handy Zener Meter For Faster Testing

The circuit presented here is compact and handy for measuring the voltage rating of a Zener diode instantly. To check a Zener diode, it is connected across a DC power supply with a suitable resistor in series, then the voltage drop across Zener diode is measured using a multimeter. The whole setup, including selection of…

Supplementing STEM Education at Home

Photo by Jeswin Thomas on Unsplash The COVID pandemic forced our children home from school in March, leaving parents and teachers scrambling. Many parents had to adjust to teaching their kids at home while working from home at the same time, and schools were unprepared for virtual learning. Now, with a COVID spike in many…