Cov txheej txheem:

Puas yog qhov muag teeb qub?
Puas yog qhov muag teeb qub?

Video: Puas yog qhov muag teeb qub?

Video: Puas yog qhov muag teeb qub?
Video: Lauj Teeb 20180421 Qhov Tseeb Yog Qhov Twg 2024, Kaum ib hlis
Anonim

Hauv qab no koj yuav pom ob qho ntawm feem ntau cov teeb qub qub . Qhov muag teev zoo li cov no hauv kev ua haujlwm tau zoo feem ntau muag txog $ 5- $ 15 txhua, tab sis feem ntau tsim nyog tsis muaj dab tsi hauv qhov tsis ua haujlwm lossis mob hnyav.

Kuj nug, koj ua dab tsi nrog cov teeb qub?

Teeb lub teeb kom nyab xeeb

  1. Cov teeb pom kev zoo yuav tsum tau muab pov tseg hauv cov tsev neeg ib txwm pov tseg.
  2. Cov teeb roj teeb me me yog lub zog txuag lub teeb thiab tsis nyob hauv lub thoob khib nyiab.
  3. Halogen Teeb qhov muag teev yuav tsum tau muab pov tseg hauv tsev neeg ib txwm pov tseg.

Ib qho ntxiv, Thomas Edison teeb lub teeb muaj nqis npaum li cas? Ackerman piav qhia tias qhov qub Edison qhov muag teev los ntawm 1880 yog qhov tsawg heev thiab muaj peev xwm tsim nyog $40, 000.

Xav txog qhov no, lub teeb qub npe hu li cas?

Antique filament qhov muag teev , Edison qhov muag teev , thiab vintage qhov muag teev tag nrho hais txog cov pa roj carbon- lossis cov teeb tungsten-filament thaum ntxov, lossis niaj hnub no qhov muag teev rov ua dua lawv qhov tsos. Feem ntau ntawm cov no qhov muag teev yog kev rov tsim dua tshiab ntawm lub qhov txhab qhov muag teev ua nrov los ntawm Edison Electric Teeb Tuam txhab ntawm qhov tig ntawm lub xyoo pua 20th.

Dab tsi yog qhov sib npaug ntawm qhov qub 60 watt teeb?

Piv txwv li: Hloov a 60 - watt lub teeb incandescent noob , xaiv LED lossis CFL noob uas muab rau koj 800 lumens. Cov hwj chim yuav nyob nruab nrab ntawm 13 thiab 15 watts.

Pom zoo: