https://phys.org/news/2018-01-holograms-d-thin-air.html
what mischevious stuff can we concoct with this? -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/massfire. For more options, visit https://groups.google.com/d/optout.
