What is the car with a small braid walking on the road?
2 Answers
The car with a small braid walking on the road is an electric vehicle. Below is a detailed introduction to electric vehicles: 1. Concept: An electric vehicle (BEV) refers to a vehicle that uses an on-board power source as its power, drives the wheels with an electric motor, and meets all the requirements of road traffic and safety regulations. It is powered by electricity stored in batteries. Sometimes 12 or 24 batteries are used to drive the car, while other times more may be required. 2. Types: The types of electric vehicles include pure electric vehicles (BEV), hybrid electric vehicles (HEV), and fuel cell electric vehicles (FCEV). 3. Power source: Provides electrical energy to the driving motor of the electric vehicle, which converts the electrical energy into mechanical energy. The most widely used power source is lead-acid batteries, but with the advancement of electric vehicle technology, lead-acid batteries are gradually being replaced by other types of batteries due to their low energy density, slow charging speed, and short lifespan. Emerging power sources under development include sodium-sulfur batteries, nickel-cadmium batteries, lithium batteries, fuel cells, and other new types of power sources.
Ah, this is clearly talking about trolleybuses! Those buses running on the road with two big "pigtails" on top, powered entirely by overhead wires. As an old Shanghainese, I'm all too familiar with them—I used to ride the No. 20 bus every day as a kid, and the friction between the pigtails and wires would make a squeaky sound. The biggest feature of these vehicles is zero emissions, running purely on electricity, making them super eco-friendly. Although new energy vehicles are everywhere now, trolleybuses still maintain routes in many big cities, given the cost of the installed overhead wire networks. However, the downside is their fixed routes—they can't change lanes freely. If the pigtails detach from the wires, the bus immediately stalls, and you have to wait for the driver to get off and pull the pigtails back into place—it's quite amusing!
