Is this good or bad for caves ad cavers?
https://www.livescience.com/61278-darpa-wants-humans-to-navigate-underground.html#?utm_source=nbcuniversal&utm_medium=syndication https://www.nbcnews.com/mach/science/new-contest-aims-help-humans-navigate-subterranean-world-ncna833191?cid=eml_mach_20171228 https://www.youtube.com/watch?v=bP6wTWiokVY Lee Skinner _______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers