<prompt> Nikeza impendulo yalo mbuzo oyinkimbinkimbi: Yisiphi isihlobo sikaCharles Hirshberg esenza iminikelo ebalulekile ekutadisheni izinhlayiya zomoya welanga nezinkambu, kanye nobudlelwano obuphakathi kwelanga noMhlaba; ne-magnetospheric physics?  <response>: UJoan Feynman 