Alamun jagora

A halin yanzu, ana maye gurbin fitilun fitilu da fitilu masu fitar da hasken LED. Sun fi dacewa da haske da sauri fiye da fitilun fitilu na gargajiya.

A halin yanzu, ana maye gurbin fitilun fitilu da fitilu masu fitar da hasken LED. Sun fi dacewa da haske da sauri fiye da fitilun fitilu na gargajiya.

 

LEDs ci gaba ne a cikin hasken mota, kamar yadda aka yi amfani da wayar lantarki a farkon karni na 20. An fara amfani da fitilun a fitilolin mota da na baya. An nuna alamar canjin shugabanci ta hanyar levers masu zamewa da aka gabatar a cikin XNUMXs.

Lokacin da zirga-zirga a birane ya karu sosai a cikin 20s, an zartar da dokoki a cikin ƙasashe ɗaya don hana hargitsin zirga-zirga. A kasar Jamus, an bukaci direban ya nuna aniyarsa ta sauya alkibla da birki, ta yadda motocin da ke bayansa su yi gaggawar mayar da martani. A Poland, matakan farko na kafa dokokin zirga-zirga sun bayyana a shekara ta 1921, lokacin da aka fitar da wani tsari na gama gari na zirga-zirgar ababen hawa a kan titunan jama'a.

Juya sigina sun tabbatar suna taimakawa sosai wajen bin ƙa'idodin hanya kuma, mafi mahimmanci, don guje wa haɗuwa da yawa. Bayan latsa maɓallin da ya dace, na'urar lantarki ta fitar da lever mai nuna jagora game da tsawon 20 cm daga gidan, yana nuna sha'awar canza shugabanci. Daga baya, an haskaka lever mai ma'ana, wanda ya ba shi mafi kyawun gani.

Masana'antun kera motoci sun yi amfani da kayan aikin da ba a kwance ba da wasu na uku suka yi. A Jamus, siginar juyawa daga Bosch, wanda aka gabatar akan kasuwa a cikin 1928, ya zama sananne; a cikin Amurka, kamfanonin Delco sun shahara. An maye gurbin masu nunin jagorar lantarki kawai da sanannun siginonin juyawa a cikin shekarun 50.