--===============45766047284244094== Content-Type: multipart/signed; boundary="nextPart1580258.2mF0rX9ayI"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart1580258.2mF0rX9ayI Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Last year as part of a university project a group of friends of mine did=20 exactly this for their group behavior robots - they had a set of panels=20 panted with luminescent paint in a dark room, and their "ant" leaving its=20 "pheromone" trail had a bright halogen spot light on it - trail worked for= =20 the other "ants" running a line following algorithm - was quite cool to wat= ch=20 one robot make a trail that the others followed On Thursday 23 September 2004 20:13, Koen van Leeuwen wrote: > On Thursday 23 September 2004 19:46, Padu wrote: > > In nature, pheromones are chemical drops that evaporate. Ants can detect > > the presence of pheromones through their antennas, and the fact that th= ey > > do evaporate contributes to the creation of optimized nest-food trails. > > Do you guys have any other suggestion regarding sensors, other > > techniques, anything? > > > > Thanks > > > > Padu > > How about a glow-in-the dark floor, with 'ants' with high-intensity LEDs = or > something? > > It would have to be dark though, or use red ambient light and green glowi= ng > paint and some optical filtering at the ant... > > Reusable, no refilling of evaporating ink, not as much energy needed as to > heat marbles... plus you can see the tracks too ;o) > > I don't know how long the afterglow persists... > > Good luck, > > Koen van Leeuwen > _______________________________________________ > http://www.piclist.com > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --nextPart1580258.2mF0rX9ayI Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQBBU39icCiIowKJhdgRAurNAJkB+SEugudaCwul5x1wpXLeWjHmpwCeM8K7 iwosmEKitZN74jZ1nfzZDcE= =Tb+y -----END PGP SIGNATURE----- --nextPart1580258.2mF0rX9ayI-- --===============45766047284244094== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit _______________________________________________ http://www.piclist.com View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --===============45766047284244094==--