steemitboard (66)in #news • 5 years agoRE: Engineers develop worlds most efficient semiconductor for thermal managementCongratulations @ukraina2018! You received a personal award! Birthday! - You are on the Steem blockchain for 2 years! You can view your badges on your Steem Board and…steemitboard (66)in #news • 6 years agoRE: Engineers develop worlds most efficient semiconductor for thermal managementCongratulations @ukraina2018! You received a personal award! Year on Steemit Click here to view your Board Do not miss the last post from @steemitboard: Christmas…steemitboard (66)in #news • 6 years agoRE: Engineers develop worlds most efficient semiconductor for thermal managementCongratulations @ukraina2018! You have completed the following achievement on Steemit and have been rewarded with new badge(s) : You published your First Post You got…