UNepetuni
Iplanethi ehamba phambili, i-ice giant enezimoya ezihamba phambili ezilinganiselwe kuhlelo lwelanga.
NASA/JPL
Iplanethi etholakele ngepensela ngaphambi kokuba ibonakale isuka ku-telescope, futhi iyikhaya lemvula ehamba ngokushesha kakhulu eyaziwayo nganoma iyiphi iplanethi.
I-Neptune ifana ngobukhulu nesakhiwo ne-Uranus kodwa inkulu kakhulu futhi inesisindo esiningi. Umoya esimo sezulu sifinyelela kumakhilomitha ayi-2,000 ngehora.
Yaye iplanethi yokuqala etholakele ngombono we-mathematical: ukungalingani kokuhamba kwe-Uranus kwaholela ku-Urbain Le Verrier ukubala indawo yayo, futhi uJohann Galle watholakala ngo-1846. Inyanga yayo enkulu, iTriton, ijikeleza emuva futhi ingase ibe yingxenye ethathwe ye-Kuiper belt.
Inyanga ezindaweni zolwazi
Amasu
Amathuluzi nama-lessons asebenzisa amamodeli alula ukufundela kuphela. Akufanele asetshenziswa ukuhlola, ukuhlela umsebenzi noma noma yiluphi ukhetho lokusebenzela. Izitifiketi zimahhala futhi aziqinisekisiwe. Funda isichazamazwi sezinto ezifundiswayo