1

Top Guidelines Of handles

News Discuss 
1917 patent drawing of Shuman's solar collector In 1897, Frank Shuman, a US inventor, engineer and solar energy pioneer developed a small demonstration solar motor that worked by reflecting solar energy onto sq. packing containers crammed with ether, that has a lower boiling stage than water and were fitted internally https://bobi876vfm6.empirewiki.com/user

Comments

    No HTML

    HTML is disabled


Who Upvoted this Story