Search results
Results from the WOW.Com Content Network
The Fire Prevention Week commemorates the Great Chicago Fire.On the 40th anniversary (1911) of the Great Chicago Fire, the Fire Marshals Association of North America (FMANA), the oldest membership section of the National Fire Protection Association (NFPA), sponsored the first National Fire Prevention Day, deciding to observe the anniversary as a way to keep the public informed about the ...
Selenium is most commonly found as an impurity, replacing a small part of the sulfur in sulfide ores of many metals. [ 53 ] [ 54 ] In living systems, selenium is found in the amino acids selenomethionine , selenocysteine , and methylselenocysteine .
Indium(III) sulfate (In 2 (SO 4) 3) is a sulfate salt of the metal indium.It is a sesquisulfate, meaning that the sulfate group occurs 1 1 / 2 times as much as the metal. It may be formed by the reaction of indium, its oxide, or its carbonate with sulfuric acid.
As early as in 1895, it was known that ammonia was 'strongly antiseptic... it requires 1.4 grams per litre to preserve beef tea (broth).' [79] In one study, anhydrous ammonia destroyed 99.999% of zoonotic bacteria in three types of animal feed, but not silage.
The latest versions are more accurate than 1 part in 10 15, about 1 second in 20 million years. [14] The caesium standard is the primary standard for standards-compliant time and frequency measurements. [ 84 ]
Nicotine production is strongly induced in response to wounding as part of a jasmonate-dependent reaction. [181] Specialist insects on tobacco, such as the tobacco hornworm ( Manduca sexta ), have a number of adaptations to the detoxification and even adaptive re-purposing of nicotine. [ 182 ]
Glucose is a sugar with the molecular formula C 6 H 12 O 6.It is overall the most abundant monosaccharide, [4] a subcategory of carbohydrates.It is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight.