In this video, I demonstrate how to make an oxygen generator using manganese dioxide (MnO2) and hydrogen peroxide (H2O2) ...

Switzerland looks like a postcard, but beneath its mountains lies one of the most extreme defense systems ever built. With over 374,000 bunkers, the country prepared not to fight wars — but to survive ...

MANITOWOC, Wis. (WBAY) - Friday marks 20 years since Teresa Halbach’s disappearance and murder. On Halloween 2005, the 25-year-old professional photographer had her last appointment at the Avery ...

Teresa Halbach died on Halloween in 2005 after she disappeared from an auto salvage yard Nicole Briese is a contributing writer at PEOPLE. She has been working at PEOPLE since 2022. Her work has ...

Teresa Halbach died on Oct. 31, 2005, but questions about exactly what happened to her still remain 20 years later. The 25-year-old photographer disappeared from an auto salvage yard belonging to a ...

Though they maintain their innocence, they are both serving life sentences for her death Teresa Halbach died on Oct. 31, 2005, but questions about exactly what happened to her still remain 20 years ...

If you’re new to generators, you’ve probably found yourself asking: What’s an inverter generator? It’s a term that pops up as soon as you start doing research. Inverter generators are more expensive ...

Karl Frederick Halbach was born on November 10, 1944 in Santa Cruz, CA to Jean and Edwin “Ted” Halbach. The second of three children, he described an adventurous upbringing building imaginary ...

Karl Frederick Halbach was born on Nov. 10, 1944 in Santa Cruz, California, to Jean and Edwin “Ted” Halbach. The second of three children, he described an adventurous upbringing building imaginary ...

Two German physicists have reimagined how to create powerful and uniform magnetic fields using compact permanent magnets. By overcoming the limitations of the well-known Halbach array, which works ...

Mary H. (Halbach) Schaar, age 69, of New Holstein, passed away unexpectedly with her loving family at her side on Monday, June 2, 2025, at ThedaCare Regional Medical Center in Appleton. She was born ...