Can electricity be recycled or reused by connecting ground wire back to electric company instead of into Earth? (nope- electricity does return to power company, but not enough ÒenergyÓ left to recycle. Housing ground wire for lightning strikes, not same as electrical circuit ground.)
Why do our cars spit out white steam before they're warmed up? (because when the car is relatively, the steam produced is quickly cooled and condenses when it hits air; a warm car produces steam that's so hot, it doesn't condense well after it leaves the tail pipe).