Emergents, which do not form a continuous layer, are usually the giants of the forest, reaching heights of 35 to 70 m or more, and trunk sizes of over 2 m in diameter.
In 2009 an old Russian craft slammed into a communications satellite, creating a cloud of hundreds of pieces of debris and putting other hardware at risk.
Very little light filters through the canopy of leaves and branches in a rain forest to reach ground level—or close to the ground—and at those levels the yellow-to-green wavelengths predominate.
No one would advocate that sub-prime types of securities be introduced in the markets, but the concern is that all new or emerging products will be stopped.
The Alvin Ailey American Dance Theatre was formed in the 1950s and quickly established itself as a leading exponent of progressive choreography and contemporary dance.
I think each leader has to decide what works best for them, but over the course of my career, I've found techniques and developed my own style to strike the right balance.