Aero-Terms!

Aero-Terms are designed to be a daily reminder of the terms, names, acronyms and explanations of the unique language that populates the aviation world. Aerospace, sport aviation, fixed wing, helo, you name it... it's all fair game.

Aero-Terms should serve as a quick but intriguing reminder of the terms you may use every day, or an introduction to an aspects of the Aero-World you may not yet be familiar with. ANN also encourages readers to go beyond the FMI link, and further research any intriguing terms.

Suggestions for future Aero-Terms are ALWAYS welcome, as are additions or discussion of the explanations given for each Aero-Term.

No Boundary Condition

The idea that the universe is finite but has no boundary (in imaginary time). The no boundary proposal, proposed by Stephen Hawking, predicts that the universe would start at a single point, like the North Pole of the Earth. But this point would not be a singularity, like the Big Bang. Instead, it would be an ordinary point of spacetime, like the North Pole is an ordinary point on the Earth. According to the no boundary proposal, the universe would have expanded in a smooth way from a single point. As it expanded, it would have borrowed energy from the gravitational field, to create matter.

FMI: www.everythingforever.com/hawking.htm