Answer:
What was the first man made invention that could see through a wall?
Often found in doctor's offices and pirate flags
Sometimes you feel it weigh a ton. Yet it is nothing, but somehow still there. Makes you uncomfortable around anyone, But speak its name and it's gone.
You row in one while you float.
If you drive on this, pedestrians and the police will be pretty upset with you.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.