Man using a thermochromic strip thermometer
Numéro d’image : 11847967
| Model released. Man using a thermochromic strip thermometer. The thermometer consists of a row of patches which change colour at different temp- eratures. Each patch has a coating of micro- encapsulated liquid crystals,whose rod-shaped molecules are arranged like the steps of a spiral staircase. At room temperature the spiral is in a compressed form and does not reflect light. As the temperature increases,the spiral expands & begins to reflect light at specific wavelengths. The composition of the crystal determines its acti- vation temperature. In this case the thermometer indicates a temperature of 38 degrees centigrade (slightly higher than normal) | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Sauze, Francoise |
| Taille de l’image : | 2480 px × 3683 px |
| Model Release : | Disponible |
| Property Release : | Non requis |
| Restrictions : | - |
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