NPL synthesises novel security ink on Saturday, October 12, 2019 in The Hindu - Science with No comments The two-pigment dispersion glows red under UV light, emits green colour soon after the light is turned off from The Hindu - Science https://ift.tt/2q0noEa Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:NASA s Parker Solar Probe closest ever to Sun‘Specialised course to help cut deaths due to medical errors’Tigers dwindling: just six sub-species remain, says studyParker Solar Probe smashes record for closest approach to Sun: NASASpace travel can alter the brain: study
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