I read an article about a guy that invented a face mask for cows. It is not farts that expel the gas, it is their burbs. The mask converts the methane to water and Co2.
June 28, 2014
I read an article about a guy that invented a face mask for cows. It is not farts that expel the gas, it is their burbs. The mask converts the methane to water and Co2.