Any problem in the lower spine can affect a nerve that feeds into the sciatic nerve, causing sciatica symptoms. Watch: Sciatica Animated Video. Any problem in the lower spine can affect one of the nerves that feeds into the sciatic nerve, causing pain to radiate along that part of the nerve.
When was Kool Aid invented? The Chemist Edwin Perkins along with his wife Kitty in the year 1927 invented the powdered drink Kool-Aid in Hastings, Nebraska in the United States.
In 1939 American Julian S. Kahn received a patent for a disposable spray can, but the product remained largely undeveloped. Lyle David Goodhue, credited as the inventor of the spray can, earned a patent for a refillable aerosol spray can in 1941. In 1949 Bronx machine shop proprietor Robert H. Abplanalp developed a cheap, efficient valve, which helped spray cans to come into widespread use.