Tonic water fluorescing under ultraviolet radiation. The fluorescence is due to quinine,a prophylactic against malaria. Tonic was originally created by British officials in india as a means of taking the bitter-tasting quinine. It was found to be more palatable with the addition of gin | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |