I-Newton's Cannon
Ibhola yentsimbi iqhutywa ngokukhawuleza kwaye ngokukhawuleza ukusuka phezulu komlambo de ibe yindawo ejikelezayo, emva koko iphume.
ESO/S. Guisard (www.eso.org/~sguisard) (CC BY 4.0)
I-Newton's Cannon
Yintoni le? UIsaac Newton wacinga ukuba i-cannon kwinduli ephakamileyo kakhulu ukuba iyaphuma emkhathini. Yivulele ibhola ngokucothayo kwaye iyawa ezantsi kwakhona. Yivulele ngokukhawuleza ngokwaneleyo kwaye umhlaba ugoba kude ngaphantsi kwayo njengoko ihamba ngokukhawuleza, ngoko ayizukuba yindawo yokuwela. Eli lijikelezo.
Indlela yokusetyenziswa kwayo: Misela isixa esikhawulezayo sokuqala nge-slider okanye iqhosha lesantya, emva koko ucinezele Umlilo. Ii shots ezidlulileyo zihlala kwikhusi ukuze ukwazi ukuzithelekiswa.
Ikhawuleza kangakanani loo nto?
- Uhlaselo lwakho
- Inqwelomoya yejet, malunga ne-900 km/h (0.25 km/s)
- Ibhombu ye-rifle, malunga ne-1 km/s
- Isantya se-Orbit
- Isantya Sokuphuma
Umlambo uzotywe phezulu kakhulu kunanoma yimuphi omnye obonakalayo ukuze ukwazi ukuwubona. Ukulwa kwemoya akuhoywa.
Zama oku
- Cinizela "i-Jet airliner" kwaye uvule umlilo, emva koko "i-Rifle bullet" kwaye uvule umlilo.Isaziso: Zonke zibuyela ezantsi ngokufanayo. Nakuba izinto ezikhawulezayo kakhulu zomihla ngemihla azikho naphi na kufutshane nokukhawuleza ngokwaneleyo ukujikeleza.
- Cinizela "Isantya sokuhamba" kwaye uvule.Isaziso: Ibhola ihamba yonke indlela ijikeleze kwaye ibuyela kwi-cannon. Iyawa ixesha lonke, kodwa iyaqhubeka ilahleka emhlabani. Le yinto eyenza ukuba isiXeko seSizwe soMhlaba sihlale phezulu.
- Umlilo ohamba ngamandla aphantsi kunaleyo yesantya sokuhamba, emva koko uhamba ngokukhawuleza.Isaziso: Ecothayo: ijikeleza ezantsi kwaye iwela kwinxalenye yendlela ejikelezayo. Ikhawulezayo: umda ujika ube yi-ovale ende ejikeleza kude ngaphandle kwaye ibuyela emva.
- Nqakraza "Isantya Sokuphuma" kwaye uvule, emva koko tshintshela iplanethi kwinyanga.Isaziso: Kwisantya sokuphuma ibhola iphuma kwaye ayizukubuya. Kwinyanga, ngoxinzelelo lwayo olusezantsi, isandi se-orbit simalunga ne-1.6 km/s kuphela.
Iimbono ezimva kwayo
Kutheni ibhola ejikelezayo ingawela phantsi?
It does fall, all the time. Earth's surface curves downwards by about 5 metres for every 8 kilometres you travel, and anything dropped falls about 5 metres in its first second. So a ball moving sideways at about 8 kilometres per second falls 5 metres each second while the ground drops away by 5 metres. It never gets any closer to the ground.
Kutheni le nto intaba iphakamileyo?
Kwihlabathi lendalo iphela umlambo apha umalunga ne 510 km ubude (8% yeradius yehlabathi), ngaphezulu kwe International Space Station iqhuba ( malunga ne 400 km), ngoko ke ibhola iqala phezulu kakhulu kumoya wonke. Ezantsi elwandle, ukutsala kuyakukhawuleza kwaye kufudumeze ibhola ixesha elide phambi kokuba ifike kwisantya sokuhamba nge orbit. Le yisizathu sokuba i-rockets ezinyanzelekileyo zikhuphe ngaphandle komoya kuqala kwaye emva koko zikhawuleze ngasecaleni.
Iindawo: iindidi zeplanethi kunye nobungakanani ukusuka kwi NASA/JPL (bodies.json); iindlela ziyimijikelezo ecacileyo yezinto ezimbini. Isantya sansuku zonke siziimpawu eziqhelekileyo ezijikelezayo: iinqwelomoya ezihamba ngeejet zihamba malunga ne-900 km/h, kwaye izidumbu zerayisi zishiya isiqulathi esimalunga ne-0.7 ukuya kwi-1.2 km/s, malunga ne-1 km/s yenye ekhawulezayo.
Ukutsala okunokwenziwa yizinto zonke kwizinto zonke. Uxinzelelo lwehlabathi lutsala konke ukuya kwisiqithi saso, oko kubangela ukuba izinto ziphele.
Okuninzi kwincwadi eneenkcukacha →Indlela yento eqhubeka iwela phantsi kweplanethi okanye inkwenkwezi ngaphandle kokubetha, kuba iyahamba ngasecaleni ngokukhawuleza ngokwaneleyo.
Okuninzi kwincwadi eneenkcukacha →The speed you must go sideways to circle a planet at a given height without falling in or flying away. Just above Earth's air it is about 7.8 km/s.
Okuninzi kwincwadi eneenkcukacha →The speed needed to leave a planet for good, never falling back. From Earth's surface it is about 11.2 km/s, ignoring the air.
Okuninzi kwincwadi eneenkcukacha →Umoya otyhala into ehambayo kwaye uyicoce. Le sixhobo ayihoyi; ibhola ye cannon eyenziwe ngokukhawuleza iyakuvalwa kwaye iqhume ngumoya.
Itheyibhile yedata (umbhalo otshintshiyo)
Ecothayo kunesantya esijikelezayo: iwela umva. Iphakathi kwesantya esijikelezayo nesezantsi: ijikeleza. Kwi okanye ngaphezulu kwesantya sokuphuma: ishiya ngokulungileyo.
| Iplanethi | Isantya sojikelezo lwe-orbit apha | Isantya sokuphuma apha |
|---|---|---|
| Ihlabathi | 7.61 km/s | 10.8 km/s |
| Inyanga | 1.62 km/s | 2.29 km/s |
| I-Mars | 3.42 km/s | 4.84 km/s |
Izixhobo kunye neengcebiso zisebenzisa iimodeli ezilula zokufunda kuphela. Akufanele zisetyenziswe ukuqhuba, ucwangciso lwemikhosi okanye nayiphi na intlawulo yokusebenza. Iziqinisekiso azihlawulwanga kwaye azigunyaziswanga. Funda uxanduva lokungasebenzisi imixholo yoqeqesho