LCP-18 Apparatus for Measuring Speed of Light Featured Image

LCP-18 Cov Lus Qhia rau Kev Ntsuas Ceev ntawm Lub Teeb

Cov lus piav qhia luv luv:

Khoom Nthuav dav

Cov khoom lag luam

Txij li thaum Galileo thawj zaug sim ntsuas ntsuas qhov ceev ntawm lub teeb nyob rau hauv 16th caug xyoo, tib neeg tau siv cov thev naus laus zis feem ntau los ntsuas kev ceev nrawm ntawm lub teeb nyob rau ntau lub sijhawm. Tam sim no, qhov kev ncua deb uas lub teeb mus rau hauv ib lub sijhawm tau dhau los ua tus qauv ntsuas ntawm txhua qhov ntev ntsuas, uas yog, "qhov ntev ntawm lub 'meter' sib npaug nrog qhov kev ncua deb hauv lub teeb mus rau 1/299792458 qhov luv thib ob nyob hauv lub tshuab nqus tsev." qhov ceev ntawm lub teeb tseem tau siv ncaj qha rau hauv ntsuas kev deb, Qhov ceev ntawm lub teeb tau ze ze rau hauv lub hnub qub. Qhov ceev ntawm lub teeb tseem yog qhov tseem ceeb yooj yim ib txwm nyob hauv physics. Ntau lwm yam xwm yeem cuam tshuam rau nws, xws li Rydberg tas mus li nyob rau hauv spectroscopy, kev sib raug zoo ntawm lub tshuab nqus dej permeability thiab nqus conductivity hauv cov khoom siv hluav taws xob, thawj hluav taws xob tas mus li thiab qhov hluav taws xob tas mus li nyob rau hauv Planck's leej neeg lub cev hluav taws xob, cov huab hwm coj ntawm protons, neutrons, hluav taws xob thiab muons muaj txhua yam cuam tshuam txog kev nrawm ntawm lub teeb C.

Cov kev xaiv sim: ntsuas qhov ntsuas qhov hloov siab ntawm ntau yam xov xwm xws li organic iav, hluavtaws quartz, thiab cov kua los ntawm kev siv lwm lub raj xa hluav taws xob.

Cov Lus Qhia Tshwj Xeeb

Kev piav qhia	Cov Lus Qhia Tshwj Xeeb
Lub Hwj Ceeb Qhov Chaw	Semiconductor Laser
Ntev ntawm Rail	0.6 m
Co tes hauj lwm zaus	100 MHz
Kev Ntsuas Sij Hawm Ntau zaus	455 kHz
Ntev puag ncig-Kev Ncig Mus Deb	0 ~ 1.0 m (kev rov ua haujlwm retroreflector 0 ~ 0.5 m)
Kev Ntsuas Yuam Kev Ntawm Nkaus ntawm Lub Teeb	5% los sis zoo dua