SPACEFLIGHT KAKU CUCKOO COMMENTS

   THERE ARE A FEW QUESTIONS I DO HAVE .
    LIKE , WHY WE DON'T FLY THE SPACECRAFT WITH JETS TO THE ATMOSPHERICS OF FLIGHT .
     THEN FIRE IT UP TO GO INTO SPACE? THEY MOVE SHUTTLES PIGGYBACK ON JUMBO JETS?
       ALSO WHY DO PEOPLE THAT CAN THEORIZE , AND CALCULATE , NOT BE CAPABLE TO SEE THE MECHANICAL . AS IN , WHY PUSH FROM EARTH OR MOON ON SAIL TYPE SHIPS ? SENDING ENERGY INSTEAD OF PRESSURE , TO BE CONVERTED ON SPACECRAFT ? TO PUSH IS WAY MORE EXPENSIVE  THAN SENDING ENERGY .
GIANFRANCO FRONZI APRIL /10/12