If I could travel to ancient times, I would bring with me the knowledge of solar energy production, so that I could produce electricity in ancient times, just like that mythical television. series, a person travels to ancient times and uses their own energy to generate electricity. Knowledge made a hand-cranked generator to charge his cell phone. He used gold wire and magnets to make a hand-cranked generator. make this generator, and finally used this machine to charge his cell phone, so if I travel to ancient times, I will bring back the knowledge of solar power generation to ancient times.
I bought a second-hand house, how to handle the transfer of water, electricity, natural gas and cable TV, what materials are needed and how much are the fees treatment. THANKS?
"A photocopier, a computerur, a television and a laser engraving machine. What can be used to generate electricity? Wind, water or solar panels?"
Everything can be used to generate electricity. You need to understand it. The price can be calculated based on the total power of electrical appliances above + daily use is like a car running out of gas should do? However, solar power can be designed to store electricity for several days, but the price is also much more. high It depends on your financial capacity, because the price of solar power generation is still high at present. The cost of one kilowatt hour of electricity is about 6,500 yuan. kilowatt hours of electricity per day, you need to invest 65,000 yuan
Why does water spill electricity?
Where are you from? may vary from location to locationother. Of these types, electricity can be more expensive. You need to get a copy of the ID card from both parties, take the electricity purchase certificate, electricity card and house book to your district electric power trading center for processing. request. The processing fee in Tianjin is 1 yuan. The other three are similar and are not necessary.
Why do fruits conduct electricity?
Fruits are essential elements in our lives. There are many types of fruits, like apples, bananas, pears, grapes...they all are. rich in nutrition. However, they also have a particular purpose: to produce electricity.
This morning, I was worried about my thesis. Seeing that time was passing minute by second, I still had no idea, and scratched my head and head anxiously. Seeing that I was so anxious, my mother brought me fruitits to eat. Looking at these fruits, my eyes suddenly lit up and I remembered an experiment in which the fruits produced electricity mentioned in a previous science book. I was delighted and quickly prepared the experimental supplies.
I brought three lemons (maybe other fruits), a fruit knife, a small light bulb and some wires connected to copper and zinc sheets.
First, turn all the lemons over and squeeze them, turning them until they are soft. This will allow all the juice from the pulp of the lemon to come out and also for the lemon bulb to function better.
Secondly, use a fruit knife to cut two small slits 1 cm long on 1/3 of one side of each lemon, put the copper foil and the leaf there respectively of zinc, and put one of the pieces of copper on the lemon is connected to the piece of zinc on the otherre lemon, but the ends are not connected. Finally, connect both ends of the wires to the positive and negative terminals of the bulb.Extremely.
"Yeah, yeah, my light is on!" I saw the little light bulb lit and I couldn't help but applaud. The “Fruit Bulb” experiment was a success!
But why do fruits produce electricity? After searching for information, I realized: lemons do not produce electricity. The reason they produce electricity is due to the galvanic effect of two metals in the acid! It turns out that lemon is a juicy fruit rich in citric acid. If we connect at its spaced ends two metallic conductors presenting large differences in activity, such as silver-iron, copper-iron, aluminum-iron or copper, zinc, etc. ., when the two ends of the conductor are connected to form a loop, the electrolytic reaction of the two metalsin the acidic solution will generate current in the circuit, which is its galvanic cell reaction. Not only lemons, but also fruits with fruit acid, amylase and pH.
Oh that's it, it looks like fruit can also be used instead of batteries! After this experience, I understood many scientific principles and the vastness of the scientific field. In the future, I want to explore science more!