And as age changes the physical condition and interactions of weapons' components and materials, the probability will increase that -- without a renewal of periodic testing -- such defects will increase in severity and number.
Since communities are a key platform for accelerated learning and performance improvement, interactions in physical space help to amplify our ability to pursue these important quests.
Communities that blend interactions in virtual and physical space ultimately become much stronger and effective than those remaining in virtual space alone.
Infants in particular receive types of physical attention that overlaps with romantic interactions and for that reason are usually withdrawn later in childhood.
Among companies we've surveyed, fully half of all interactions are constrained by one of five barriers: physical, technical, social or cultural, contextual and temporal.
The physical basis for seasonal climate prediction lies, to a great extent, in being able to forecast the slowly varying interactions between the atmosphere and the oceans.