1. Hydraulic limes are also used by the plasterer, but chiefly for external work . 2. Energy expenditure is mainly a sum of internal heat produced and external work . 3. External work may be estimated by measuring the physical activity level ( PAL ).4. Or it may go partly toward doing external work and partly toward creating entropy. 5. He continues to act, sometimes in his own projects as well as external work . 6. External work was initiated in the spring of 2010.7. His external works included a series of statues, such as Charity, Prudence, Courage and more. 8. In 2006, the building is having external work done to repair flashing and stop leaks. 9. The external works were jointly funded by NE1, Regional Growth Fund and Newcastle City Council. 10. Now some of the specific statements above can probably actually be found in published external works .