Ib puag ncig raug rho tawm los ntawm rab phom loj loj kuj hu ua cannonball. Lub cam khwb cia hlau cannonball tau qhia los ntawm Fabkis artillery engineer, Samuel J. Besh, tom qab 1450 qhov uas nws muaj peev xwm txo tau cov tsoos English tsev fuabtais phab ntsa fortifications rau rubble.
Puas yog cov phom phom ua los ntawm cov hlau lead?
Cannon projectiles tau ua los ntawm pob zeb, cam khwb cia hlau, txhuas, tooj dag, tooj liab, tooj liab thiab txawm iav. Raws li lub nplhaib ntawm Hluav Taws Xob (RoF), pob zeb lossis cam khwb cia hlau yog cov qauv; txhuas tau siv rau hauv caj npab me. … Raws li cov hlau lead, raws li George Ripley tau hais tias (New American Cyclopaedia 1870), txhuas "yog qhov nyiam heev thiab tsis tshua muaj rau cov phom loj."
Yuav ua li cas cov neeg ua cannonballs?
Allegheny Arsenal txuas ntxiv tsim plaub hom cannonballs: Solidhlau pob (cov khoom txhaj tshuaj), pawg lossis cov kaus poom ntawm cov hlau me me lossis cov pob txhuas (lub npe hu ua case txhaj, grapeshot lossis canister), tawg pob hlau uas muaj cov hlau lead shrapnel (cov ntaub ntawv spherical tua) thiab hollow hlau exploding npas (plhaub).
Puas yog cov phom phom ua los ntawm tooj dag?
Cov pob Cannon yog ua los ntawm hlauthiab cov tooj dag classic yog ua los ntawm tooj dag, ib qho alloy nrog ntau dua thermal expansion dua hlau. Raws li qhov kub thiab txias, cov liab liab cog lus ntau dua li cov pob hlau.
Yuav ua li cas hollow cannonballs?
Cannonballs tau tsim li cas thaum lub sijhawm Asmeskas Tsov Rog Tsov Rog? - Quora. Feem ntau lawv yog nrum hauv pwmmuaj ib lub raj mis yooj yim nrog cov xuab zeb refractory ntim ib ncig ntawm tooj liab hemispheres uas tsim cov kab noj hniav.
