A sentence-ending word space typically appears next to a period. “If you approve of smaller word spaces in some situations, why do you insist on only one space between sentences, where a larger gap might be useful?” Because you’re already getting a larger gap. Adobe InDesign, for instance, supports the thin space, but also the third space, quarter space, sixth space, flush space, hair space, figure space, and punctuation space. Professional page-layout programs have even more choices. If you thought that was the limit of word-space geekery, think again.

A thin space can be useful in situations where a standard word space seems too large, for instance after the periods in W. Introduction to Special Relativity, McGraw-Hill Book Company, 1968, New York.HTML supports a character called a thin space ( &thinsp ) which is roughly half the width of a word space. Mapping Time: The Calendar and its History. Dorling Kindersley Publishing, 2009, London. A journal for the comparative study of literature and ideas.

Scientists believe memory formation is the basis for human perception of time. Mosaic Autor(en)Author(s): Roman Karst TitelTitle.

It's possible to move forward in time, but not backward.

Time is the progression of events from the past into the future.

In particle physics experiments, random particles arise from a vacuum, so it doesn't seem likely the universe would become static or timeless.

If a new Big Bang occurs, our time line would end and a new one would begin. If the universe expands forever, time would continue. Will time end? The answer to this question is unknown. One argument for the origin of time is that if it extended backward infinitely, the night sky would be filled with light from older stars. We can measure cosmic background radiation as microwaves from the Big Bang, but there isn't any radiation with earlier origins. The starting point was 13.799 billion years ago when the Big Bang occurred. Since fewer new memories are built later in life, time seems to pass more quickly.Īs far as the universe is concerned, time had a beginning. Psychologists believe the brain forms more memories of new experiences than that of familiar ones. The same phenomenon explains why older people seem to perceive time as moving faster than when they were younger. As more memories form, time seems drawn out. The amygdala is the region of the brain that makes memories. Scientists at Baylor College of Medicine in Houston say the brain doesn't actually speed up, but the amygdala becomes more active. Time seems to slow down during emergencies or danger. In this respect, time truly does seem to fly when one is having fun. Basically, when time seems to speed up, the brain distinguishes more events within an interval. Chemicals that excite neurons so they fire more quickly than normal speed up time, while decreased neuron firing slows down time perception. But neurotransmitters and drugs affect time perceptions. The suprachiasmatic nuclei of the brain is the region responsible for daily or circadian rhythms. The human brain is equipped to track time. Catherine Falls Commercial / Getty Images

Word for space in time