I found that playing with a wand toy with both of them helped smooth the introduction period, getting them involved in something mutually fun and interesting. (pethelpful.com)
Forming the upper part of the engine lid, the wing is wider, has three instead of the previous five air ducts to feed cooling air into the engine bay and now extends variably for smoother introduction of additional downforce at the rear. (autoweek.com)
But the writing has improved over the past years, and this is as smooth an introduction to the way scientists view the Universe today as you will find. (newscientist.com)