Stool color changes facts. Normal stool color is brown. This is due to the presence of bile in the stool. Normal stool color can range from light yellow to brown to almost black. If stool is red, maroon, black, clay-colored, pale, yellow, or green this may signify a problem.
08 February 2016. The longest continuous vocal note is 1 min 52 sec and was achieved by Alpaslan DurmuÅ (Turkey) at the KipdaÅ MÃ¼hendislik, Istanbul, Turkey, on 8 February 2016. The note was sustained above the required decibel threshold from a measurement distance of 2.5 metres.
The lowest vocal note produced by a male is G -7 (0.189 Hz) and was achieved by Tim Storms (USA) at Citywalk Studios in Branson, Missouri, USA, on 30 March 2012. Timothy is the bass singer for the vocal group 'Pierce Arrow'. The attempt was witnessed by two college music professors and an acoustician.