Tech & Science
What Is the Mass of an Electron? The Number and Where It Comes From
The mass of an electron is 9.1093837139 x 10^-31 kg, or 0.511 MeV/c2. See the CODATA value, how it was measured, and
How many grams of protein in a day? Adults need 0.8 g per kg of body weight, or 56 g for a 70 kg adult. See the table by weight, age and activity level.
Health
Tech & Science
The mass of an electron is 9.1093837139 x 10^-31 kg, or 0.511 MeV/c2. See the CODATA value, how it was measured, and
Health
Magnesium before bed: what the trials show about sleep, how oxide, citrate and glycinate differ, and the NIH upper limit. Read this
Space
How far is a light year? About 9.46 trillion km or 5.88 trillion miles. See the IAU definition, light-travel times to the
Environment
Tidal wave vs tsunami: NOAA says tsunamis come from undersea quakes, not tides. See how tsunamis, storm surge and Great
Environment
Compare the five Great Lakes by surface area, depth, volume and retention time using EPA figures, and see why Superior
Environment
A seiche (pronounced “saysh”) is a standing wave that sloshes back and forth inside an enclosed or semi-enclosed body of
Environment
Thermal pollution is the degradation of water quality caused by a significant change in the ambient temperature of a natural
Community & Culture
The Great Lakes basin is home to dozens of Indigenous nations whose connections to these waters predate European contact by
Cross-border trade between Ontario and the Great Lakes states of Michigan, Ohio, New York, and Pennsylvania represents one
The Great Lakes region hosts one of North America’s most significant and growing wind energy sectors, driven by
The residential real estate market in Hamilton, Ontario, one of the largest cities in the Great Lakes region,
One email a week. The freshwater research, health findings, and environmental data that matter across the basin, written so you can actually use them.