Other Search Engines you may not have heard of...there is more than just Google!

 Here are some other search engines, some of which might be useful for STEM: 

www.refseek.com - Academic Resource Search. More than a billion sources: encyclopedia, monographies, magazines.

www.worldcat.org - a search for the contents of 20 thousand worldwide libraries. Find out where lies the nearest rare book you need.

https://link.springer.com - access to more than 10 million scientific documents: books, articles, research protocols.

www.bioline.org.br is a library of scientific bioscience journals published in developing countries.

http://repec.org - volunteers from 102 countries have collected almost 4 million publications on economics and related science.

www.science.gov is an American state search engine on 2200+ scientific sites. More than 200 million articles are indexed.

www.base-search.net is one of the most powerful researches on academic studies texts. More than 100 million scientific documents, 70% of them are free

Quantum entanglement used to measure rotation of the earth

 A new technique has been devised that allows physicists to use quantum entanglement to measure the rotational rate of the earth. This is yet another example of the expanding set of experiments that are using quantum mechanical phenomena to measure all sorts of other phenomena, in addition to new quantum mechanical properties. There is a hope that experiments like this will lead to new insights of how quantum mechanics and gravity are related - the Holy Grail of physics is to construct a theory encompassing general relativity (gravity) with quantum mechanics and the Standard Model.