1. Physics: Re: Atom Photon Absorption and Emission Energy, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Sun Apr 15 10:19:05 2007
2. Chemistry: Re: Why is film ruined when exposed to yellow light?, Gareth Evans, Senior Research Associate Sun Feb 11 09:37:18 2001
3. Engineering: Re: Will airport XRays harm digital camera circuitry or memory, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Wed Aug 30 06:11:57 2006
4. Physics: Re: VRD--argument about heat vs infra-red radiation, Gareth Evans, Senior Research Associate Tue Oct 10 16:59:16 2000
5. Physics: Re: Why do soccer gloves help goalies catch balls?, Gareth Evans, Senior Research Associate Sat Jan 12 07:09:54 2002
6. Chemistry: Re: Silver Oxide = Silver(I)Oxide and also Silver(II)Oxide why?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Wed Nov 30 11:07:55 2005
7. Physics: Re: Does knee dragging affect turn radius?, Gareth Evans, Senior Research Associate Wed Nov 15 09:29:17 2000
8. Chemistry: Re: Why are picture positives the oposite color of picture negatives?, Gareth Evans, Senior Research Associate Thu Mar 7 16:48:11 2002
9. Physics: Re: Continuous V's Line Spectra, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Fri Aug 13 04:27:15 2004
10. Other: Re: Technology - is it a cure or a curse?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Tue Feb 24 14:48:25 2004
11. Physics: Re: Supercooled helium climbs walls. Same effect as water runs up a capillary?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Wed Sep 8 09:16:59 2004
12. Chemistry: Re: Is it possible/easy to make Silver Nitrate less sensitive?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Thu Nov 23 14:23:04 2006
13. Chemistry: Re: Is it possible to ruin film (35 mm) while still in the camara?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Thu Jun 26 05:06:48 2003
14. Engineering: Did Prof Black invent the operational research concept of the Black Box ? , Michael Evans, undergrad Fri Jun 9 09:32:53 2000
15. Physics: Re: can a liquid provide an upward and downward force at the same time?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Sat Jul 19 11:35:52 2003
16. Chemistry: Re: What does light do to chlorine bleach?, Gareth Evans, Senior Research Associate Fri Dec 22 10:17:23 2000
17. Physics: Re: Can you sonicate liquid samples by applying the frequency to the air around, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Sat Sep 25 08:26:02 2004
18. Computer Science: Re: How does a Professional Cameraman use Light?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Fri Feb 28 15:08:42 2003
19. Physics: Re: Force of a Bullet vs. Force of an Arrow, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Wed Oct 1 13:05:57 2003
20. Chemistry: Re: Can elements other than Ag be used for photographic film? , Gareth Evans, Senior Research Associate Tue Nov 28 10:13:56 2000
21. Physics: Re: Why does the suns reflection turn square to round with greater distance?, Harry Adam, Research Associate, Research Division, Kodak Limited Tue Jun 12 16:36:53 2001
22. Physics: Re: How gravitation effects molecule distribution in solutions, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Thu May 27 12:58:08 2004
23. Chemistry: Re: If water expands as it freezes, why does my water bottle contract?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Tue Jun 3 04:52:55 2003
24. Physics: Re: What colour does Lthium turn when burned?, Gareth Evans, Industrial R&D practitioner and manager ( retired ) Sun May 9 14:21:23 2004
25. Physics: Re: How can one calculate the force needed to lift a weight off the ground? , Gareth Evans, Senior Research Associate Wed Jul 19 16:19:32 2000