Video: Inge Lehmann mus kawm ntawv nyob qhov twg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
University of Cambridge
Copenhagen University
Yog li ntawd, Inge Lehmann ua haujlwm nyob qhov twg?
Xyoo 1928, Lehmann tau raug xaiv los ua tus thawj coj ntawm Lub Tsev Haujlwm Saib Xyuas Seismology ntawm Royal Danish Geodetic Institute, nrog lub luag haujlwm rau kev khiav haujlwm ntawm Copenhagen, Ivigtut, thiab Scoresbysund seismographic soj ntsuam.
Tsis tas li ntawd, qhov kev tsis sib haum xeeb ntawm Lehmann nyob qhov twg? Ob tug ciam teb cheeb tsam, los yog kev tsis sib haum xeeb , npe rau nws: ib Lehmann discontinuity tshwm sim ntawm lub ntiaj teb sab hauv thiab sab nraud ntawm qhov tob ntawm kwv yees li 5, 100 km (kwv yees li 3, 200 mais), thiab lwm qhov tshwm sim ntawm qhov tob ntawm kwv yees li 200 km (kwv yees 120 mais) hauv qab lub ntiaj teb saum npoo ntawm lub mantle.
Tom qab ntawd, ib tug kuj yuav nug, Inge Lehmann yug nyob qhov twg?
Østerbro, Tebchaws Denmark
Inge Lehmann nrhiav tau lub hauv paus hauv paus li cas?
Ib Lehmann yog ib tug Danish lej. Nws tau ua haujlwm ntawm Danish Geodetic Institute, thiab nws tau nkag mus rau cov ntaub ntawv sau tseg ntawm cov chaw nres tsheb seismic thoob ntiaj teb. Nws nrhiav pom lub hauv paus ntawm lub ntiaj teb nyob rau hauv 1936. Nyob rau hauv no cov khoom ua si qauv nws ntxig ib tug lub hauv paus nyob rau hauv uas cov teeb liab yuav mus ntawm 8.8 km / s.
Pom zoo:
Koj saib mus rau qhov twg mus saib thaum tav su lub hnub?
Nyob rau sab qaum teb Hemisphere, lub hnub ib txwm sawv nyob rau sab hnub tuaj thiab teev nyob rau sab hnub poob. Thaum tav su, nws looms nyob nruab nrab ntawm lub qab ntug thiab ncaj qha rau sab qab teb. Qhov ntawd txhais tau tias thaum koj ntsib lub hnub thaum tav su, taug kev ncaj nraim mus rau nws yuav coj koj mus rau sab qab teb. Taug kev nrog lub hnub ntawm koj nraub qaum txhais tau tias koj mus rau sab qaum teb
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
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Lub zog rau kev thauj mus los ntawm qhov twg thiab vim li cas thiaj li xav tau lub zog rau kev thauj mus los?
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