Ka taƙaita labarin:  Ka soke shirinka na tafiya ta tsakiyar Duniya ko kuma, aƙalla, ka daidaita lokacin da za ka isa wancan gefen. Bincike ya gano cewa mutum zai ɗauki minti 38 ne kawai ya isa wannan gefen duniya - ba minti 42 ba, kamar yadda aka yi lissafi a dā. Halin da ake ciki ya gano cewa lokacin da aka yi la'akari da nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan duniya, tafiya tana da minti huɗu fiye da yadda aka annabta. Wani ɗalibi daga Jami'ar McGill a Kanada ya bincika yanayin da ake tsammani na faɗuwa ta Duniya (hoto da aka nuna). Da farko an yi tunanin tafiya ce daga wannan bangare zuwa wancan. Idan aka yi la'akari da yawan duniya, sabon kimantawa shine minti 38 da 11 seconds. Alexander Klotz, ɗalibin digiri na biyu a fannin kimiyyar lissafi a Jami'ar McGill da ke Montreal, a Kanada ne ya lissafa kuma aka buga shi a The American Journal of Astrophysics. "Wannan ya ba ni mamaki", in ji Mista Klotz ga jaridar The Times. A ka'ida, yayin da mutum ya fadi a duniya, nauyi yana canzawa a kai a kai yayin da suke tafiya zuwa tsakiya. Sakamakon haka za su hanzarta yayin da suka kusanci cibiyar, kuma su fara sake ragewa yayin da suke tafiya zuwa wancan gefen. Ba tare da la'akari da tasirin jawowa ba saboda kasancewar iska, zai ɗauki daidai lokaci ɗaya don yin tafiya a kowane gefen tsakiya. A karkashin wadannan yanayi, saurin da aka samu a lokacin saukowa zai isa ya isa saman a wancan gefen. Earth's yawa ne kasa da 2,200lbs (1,000kg) da cubic mita a farfajiya, amma 28,700 lbs (13,000kg) da cubic mita a cikin core - 3,960 mil (6,370km) a kasa. Kuma mil 2,200 (kilomita 3,500) daga tsakiya, kusan rabin hanya, akwai kuma tsalle mai ban mamaki a cikin yawa kusa da tsakiya ta waje. Yin amfani da waɗannan lambobin zai ɗauki minti 38 da dakika 11 don faɗuwa ta Duniya - minti huɗu da dakika ɗaya da sauri fiye da yadda ake tsammani. <unk>Ainihin, yadda aka tsara Duniya, nauyi yana ƙaruwa kaɗan yayin da kuka zurfafa zuwa ga tsakiya mai kauri, zuwa kusan kashi 110 cikin ɗari na farfajiyarta...
Da farko an yi tunanin cewa tafiya daga wani bangare na duniya zuwa wani - kamar London zuwa Antipodes Islands - zai dauki minti 42. Yana nazarin yanayin da ake tsammani na fadowa ta hanyar Duniya. Amma dalibi ya yi iƙirarin cewa wannan ba ya la'akari da canjin yanayin duniya. Alexander Klotz daga Jami'ar McGill ya wallafa wani sabon kimantawa. Ya yi ikirarin cewa tafiyar za ta dauki minti 38 da dakika 11.