출처
- ↑ https://www.abc.net.au/news/science/2019-02-02/copper-water-bottles/10722776
- ↑ https://www.flinnsci.com/api/library/Download/485982234af046b491724d3736c93c51
- ↑ http://terpconnect.umd.edu/~wbreslyn/chemistry/is-copper-magnetic.html
- ↑ https://holostik.com/blog/fake-copper-common-check-copper-item-real-counterfeit/
- ↑ http://resources.schoolscience.co.uk/CDA/16plus/copelech2pg1.html
- ↑ https://www.sciencebuddies.org/science-fair-projects/references/how-to-use-a-multimeter
- ↑ https://www.rsc.org/periodic-table/element/29/copper
- ↑ https://holostik.com/blog/fake-copper-common-check-copper-item-real-counterfeit/
- ↑ https://www.copper.org/education/c-facts/facts-print.html
- ↑ https://holostik.com/blog/fake-copper-common-check-copper-item-real-counterfeit/
- ↑ https://holostik.com/blog/fake-copper-common-check-copper-item-real-counterfeit/
- ↑ https://nypost.com/2017/08/21/trendy-copper-water-bottles-can-make-you-sick/
- ↑ https://wwwn.cdc.gov/TSP/ToxFAQs/ToxFAQsDetails.aspx?faqid=205&toxid=37
- ↑ https://nypost.com/2017/08/21/trendy-copper-water-bottles-can-make-you-sick/
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