Video: Hipparchus pab txhawb rau astronomy li cas?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Ib tug Greek lej thiab astronomer , nws ntsuas lub ntiaj teb-hli deb kom raug, nrhiav tau kev qhuab qhia lej ntawm trigonometry, thiab nws txoj haujlwm combinatorics tsis sib npaug txog 1870. Hipparchus nrhiav tau lub precession ntawm lub equinoxes thiab pom lub ntsej muag ntawm lub hnub qub tshiab - ib tug nova.
Ua li no, Hipparchus ua dab tsi rau astronomy?
Hipparchus . Hipparchus , (b. Nicaea, Bithynia -d. tom qab 127 BC, Rhodes?), Greek astronomer thiab lej uas nrhiav tau lub precession ntawm lub equinoxes, xam qhov ntev ntawm lub xyoo mus rau hauv 6 1/2 feeb, muab tso ua ke thawj lub hnub qub catalog, thiab ua ib tug ntxov formulation ntawm trigonometry.
Tsis tas li ntawd, Hipparchus pab txhawb rau trigonometry li cas? Hipparchus tsim ib lub rooj ntawm chords, piv txwv thaum ntxov ntawm a trigonometric rooj. Hipparchus tsis yog tus tsim ntawm xwb trigonometry tab sis kuj yog tus txiv neej uas tau hloov pauv Greek astronomy los ntawm kev theoretical nkaus xwb rau hauv kev tshawb fawb txog kev kwv yees. Nws kuj tau qhia txog kev faib lub voj voog rau hauv 360 degrees hauv tebchaws Greece.
Kuj paub, Ptolemy tau pab txhawb rau astronomy li cas?
Ptolemy ua koom tes rau astronomy , lej, geography, suab paj nruag theory, thiab optics. Nws tau sau ib lub hnub qub catalog thiab cov lus ntxov tshaj plaws ntawm kev ua haujlwm trigonometric thiab tsim kev ua lej uas ib qho khoom thiab nws daim iav yuav tsum ua kom sib npaug ntawm daim iav.
Ptolemy hais li cas txog Hipparchus?
Greek astronomer Hipparchus (thib ob xyoo pua BC) tau txais txiaj ntsig los ntawm kev qhia cov ntaub ntawv tus lej los ntawm kev soj ntsuam rau hauv cov qauv geometric thiab nrhiav pom qhov ua ntej ntawm equinoxes. Me ntsis ntawm nws txoj haujlwm tseem muaj sia nyob, tab sis Ptolemy suav tias yog nws tus thawj tseem ceeb tshaj plaws.
Pom zoo:
Baron de Montesquieu tau pab txhawb rau Enlightenment li cas?
Montesquieu yog ib tus kws tshaj lij kev nom kev tswv ntawm Kev Txawj Ntse. Insatiably xav paub thiab mordantly funny, nws tsim ib tug naturalistic account ntawm ntau hom ntawm tsoom fwv, thiab ntawm cov ua uas ua rau lawv li cas lawv yog thiab uas siab heev los yog txwv lawv txoj kev loj hlob
Cov phooj ywg pab txhawb li cas rau kev loj hlob ib txwm?
Kev loj hlob ntawm kev xav Kev sib cuam tshuam nrog cov phooj ywg muab sijhawm rau menyuam yaus kom muaj kev sib raug zoo thiab muaj kev xav sib txawv, xws li kev lees paub thiab kev xyiv fab. Kev sib raug zoo ntawm kev sib raug zoo thiab kev sib raug zoo txhawb nqa tus kheej thiab kev txawj daws teeb meem, uas yog qhov tseem ceeb rau kev noj qab haus huv, kev loj hlob tag nrho thaum cov me nyuam loj hlob tuaj
Malcolm X tau pab txhawb rau pej xeem cov cai li cas?
Malcolm X yog tus thawj coj African Asmeskas hauv kev tawm tsam pej xeem txoj cai, tus thawj coj thiab tus txhawb nqa ntawm haiv neeg dub. Nws hais kom nws cov neeg Asmeskas cov neeg dub tiv thaiv lawv tus kheej tiv thaiv kev ua phem dawb "los ntawm txhua txoj kev tsim nyog," ib qho kev taw qhia uas feem ntau ua rau nws tsis sib haum xeeb nrog cov lus qhuab qhia tsis nruj ntawm Martin Luther King, Jr
Ua li cas Florence Nightingale pab txhawb rau cov pov thawj raws li kev xyaum?
Nightingale ua lub zeem muag rau cov pov thawj-raws li Tshuaj Kho Mob Nws tau saib xyuas kev hloov kho tshiab ntawm kev saib xyuas neeg mob, qhia tsoomfwv txog kev kho tub rog kev noj qab haus huv, kev txhim kho kev huv huv hauv tebchaws Askiv thiab Is Nrias teb, thiab cuam tshuam rau kev tsim kho tsev kho mob
Eli Whitney tau pab txhawb rau kev lag luam kiv puag ncig li cas?
Eli Whitney (Lub Kaum Ob Hlis 8, 1765 - Lub Ib Hlis 8, 1825) yog ib tus neeg tsim khoom Asmeskas paub zoo tshaj plaws rau kev tsim cov paj rwb gin. Qhov no yog ib qho tseem ceeb inventions ntawm Industrial Revolution thiab zoo li kev lag luam ntawm Antebellum South. Nws txuas ntxiv ua caj npab thiab tsim kom txog thaum nws tuag hauv 1825