During tetanic contractions, muscles can shorten, lengthen or remain constant length. Many bodybuilders did however shorten or extend the chassis to fit their needs. Microwave heating can dramatically shorten the reaction time from days to seconds. This would considerably shorten the takeoff roll. Cell division will cease once telomeres shorten to a critical length. Hybrid electric propulsion has the potential to shorten takeoff distance and reduce noise. Class Ib agents shorten the action potential duration and reduce refractoriness. It may shorten the time it takes to recover from the infection. These medications substantially shorten the time to recovery with all being equally effective. Their programs often shorten interviews from lengthy tapings. Contraction of longitudinal muscles can shorten the cylinder. Hence any assistance to the Soviets on the Eastern Front could shorten the war. Projectors were commonly run too fast to shorten running time and squeeze in extra shows. Often vowels are left out to shorten transmissions and turn overs. The application of RF heating can shorten the baking time.