What about vibration? We have specialized mechanoreceptors to detect vibration (actually vibration and pressure - presumably there's processing to separate the two). It's vibration that lets us feel fine texture, via the stick-slip friction between fingertip and object.
On a related note, even a very fine powder of very low friction feels different to water - how can you capture the sensation of water using beads and blocks of a reasonably large size? -- Nathan Cook ------------------------------------------- agi Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: https://www.listbox.com/member/?member_id=8660244&id_secret=126863270-d7b0b0 Powered by Listbox: http://www.listbox.com