Solid foods will help a baby sleep through the night. There is no proof that this is true. Even if solid foods do help a baby sleep, they shouldn't be started before your doctor tells you to. Flashbulbs are dangerous and should not be used. Taking flashbulb pictures is perfectly safe.
Air conditioning is harmful for a baby.
Most hospital nurseries are now air conditioned. Teething causes high fever. This is just not so. Any temperature above 101 degrees is not due to teething. Wearing shoes will help a baby walk sooner.