Weaning Your Baby Onto Solids. The term 'to wean' comes from an ancient phrase that means 'to accustom to'. So weaning refers to the period during which an infant gradually becomes accustomed to food other than milk (breast or formula). Up until 6 months of age, breast or formula milk alone is nutritionally adequate.
Occasional airplane vibration during flight is not unusual. There are many causes of airplane vibration, including landing gear extension and retraction, extension of speed brakes, free play in movable surfaces, and systems malfunctions.
The last time lightning was the cause of plane crash in the U.S. was way, way back in 1967. It makes a lot of sense that airplanes would be prone to lightning strikes. Theyâre vessels made of metal (at least partially) hurtling through clouds, the very place where storms brew.