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Electric Cars
Hybrids vehicles, with their combination of both gas and battery power, represent 3% of the cars on the road today, up from zero just ten years ago. Fully electric cars like the Nissan Leaf and Tesla are mere curiosities, representing only 0.1% of all cars purchased in the U.S.
It might seem like a slow start, but electric cars will soon form the majority of all vehicles. Here’s why:
Except for early adopters of technology and diehard environmental customers, most people aren’t buying a fuel type, they’re buying transportation. They may want speed or economical transportation or family-friendly minivans, but how the vehicle is powered isn’t their main concern.
Examples like the Tesla have shown that electric vehicles perform on par with gas-powered cars. What limits their adoption then? Two factors: cost and range (and charging infrastructure, to a lesser extent, but that will be remedied when there is more demand).
The Nissan Leaf battery pack alone costs about $18,000 (though government incentives bring down the overall vehicle cost to the customer). When comparable gas-powered cars are about $20,000, the high cost of the battery pack alone is a huge barrier to widespread adoption, whether the cost passed on to the customer or the government, or hidden by the manufacturer.
Ramez Naam, author of The Infinite Resource: The Power of Ideas on a Finite Planet, recently explained that lithium-ion batteries have a fifteen year history of exponential price reduction. Between 1991 and 2005, the capacity that could be bought with $100 went up by a factor of 11. The trend continues through to the present day.
This exponential reduction in battery cost and improvement in battery technology, more than anything else, will affect both the cost and range of electric cars. By 2025, that Nissan Leaf battery pack will cost less than $1,800, making the cost of the electric motor plus battery pack less than the price of a comparable gasoline motor. Assuming even modest increases in storage capacity, the electric vehicle will rank better on initial cost, range, performance, and ongoing maintenance and fuel costs.
With both lower cost and better performance, electric vehicles will likely overtake gasoline-powered ones by about 2025.
Tick nhannh!
* Tiếng Anh
Traffic safety and traffic that the world now needs to pay attention. it is not only the most important factors crucial to the development and survival of a nation, a territory but a junction of trade between regions of countries, cultures on world together. In advanced countries, the situation and development of their traffic is quite developed with a dense transport network and is regulated, but in Vietnam, … Urban transport situation in Vietnam is extremely chaotic. On average there are thousands of cases every year in traffic accidents, causing serious loss of life and property. Despite being upgraded and renovated several times but the transport system of Vietnam has not improved as much. Traffic jams occur repeatedly in large cities damaging hundreds of billion per year, not only that the injuries related to traffic accidents is also increasing, especially head injuries , spine. Circulation of vehicles on roads, railways, waterways each year but with increasing road infrastructure can present data to help the traffic situation.
* Tiếng Việt
There are so many vehicles on the streets and alleys, from buses, cars, to motorbikes, bicycles. The city has the most motorbikes in this country.
Moreover, the streets are very narrow and bad. They are easily flooded when it rains so heavily. The streets and alleys become bumpy after the rain.
Many traffic users don’t obey the traffic rules. They usually drive and ride very dangerously.
As a result, there are traffic accidents every dav in this city.
Summer is my favorite season because that is the time I can rest and relax
I have some plans for this summer. I am going to the beach for about a week. Swimming in the sea always makes me feel most comfortable. I am going to sit in the sun to have beautiful sunburn. I am going to build castles in the sand, which I am very good at. I am going to pick up a lot of pretty shells. I have got an amazing collection of shells and I am very proud to show them to my friends. I am going to take a lot of photos. Well, that's going to be a wonderful holiday of mine! I am looking forward to it!
Please help with!
In the family, because you are the youngest son, everyone loves you very much, but the mother is the one who groomed you the most.
This year, her mother was nearly forty-one years old. With slender, slender body was highlighted to her mother with the beauty of gentle mother, smooth hair that people can cut their fingers when folded when the road. Black mother eyes always look at me with late eyes. The face with the left left with the white skin. When laughing at his mother like flowers, it is early morning roses. Two handbook handsome, whites of kids, dreds from the mail. The voice of the mother's feeling, felt like a lullaby, when humming like a young bird. Mother can and a lot of beauty, especially the dress, mother often wear or model, while studying mother in long dress can also make her mother can look graceful, luxurious.
At home, she is a housewife. Mother assigned to the light work such as sweeping home, clothes folding ... Mother, toilet items, clean the door will be clean, delicious shopping at the guest house for beautiful home. Each customer will always welcome warmly, invite the factory and cool water plants. Morning mother who is up early to prepare breakfast for the whole family, so that the two brothers go together with school books. When the baby hurts overnight to take care. In the evening, often about thirty minutes to tell the children, then the mother sitting, standardized education for tomorrow's class at school ... Mother very kind, kind, As well as children, also help out so many mother so many students love. When the mistake, she just reminded not scolded and also did not fight.
She is so adorable, always loves her mother and is proud to be her mother. Whenever I was hugged by my mother, my heart felt warm. In my heart, you are everything, my mother is the first in my life ... I hope to grow to be able to help her mother harder. I promise to take good care and try to learn to answer her and teachers taught, raising people to people. Mom, I love you so much!
I hope that all is well at your end. I just wanted to take this opportunity today to let you know how special you are to me. I have always dreamed of finding a girl like you; someone who is smart and pretty at the same time. Truly, a perfect combination of beauty with brains. I really hope that what I think of you is actually true, else I will be shattered. I promise that I will try to become a better person for you, for us. I want you to understand me like no one else. I want us to have a strong bond that no one can ever break. There is so much more to say and discuss, but I guess this is it for now.
I love you.
Yours,
****
Last Saturday, I went to see her parents for the match between his kidneys and Ha Tay
Hang Day stadium, Hanoi. But when parents and children to the stadium, stands looking
up I saw people crowded, crowded place. Then a few minutes, the two teams came out.
Music emerged, making the air in the field even more boisterous. When the game starts,
the players move, decided to winning the ball. Suddenly, the referee blew the whistle and
unfortunately for the players his kidneys. Number one player was fouled. Soon a yellow
card for him. As for the expression of Ha Tay team excited. But fifty minutes to the 15
players in the team and scored his kidneys to his team. Now the identity of the players
present Hatay was slightly pale. Not long after, the referee blew the whistle alarm every
hour. The final score was 1-0 in favor of the Cua Ong Thanh players. I found this game
very well and look forward to watching the game or more.
I am going to go to the city to visit an art museum on Sunday. I’ll go there with some friends. We’ll meet at the station at 9.00. It’ll take about 30 minutes to get to the city by train. The museum opens at 10.00. We’ll get there early to get at the front of the queue. We’ll eat lunch in the museum’s café and I’ll buy some souvenirs for my family. I will take money to buy tickets, food and souvenirs. I’m looking forward to Sunday because I like going to museums with my friends.
>>>>> Tham khảo <<<<<
This weekend I plan on going to a concert with one of my best friends. We’re gonna go see Maroon 5, which happens to be a rock band, and it’s down the shore in Camden, New Jersey. I plan on picking her up at her house, and then we’ll continue to go have dinner. Afterwards, we’ll drive to the arena, which is the place where the concert is held. After the concert, we’ll probably hit a lot of traffic on the way home, so we’ll just take it easy, and stop for a few breaks on the way
meo
Dịch bài:
gày 10 tháng 10...
Hoa thân yêu,
Bố mẹ hy vọng con vẫn khỏe mạnh. Bố mẹ đều khỏe cả, sắp đến mùa gặt nữa rồi và bổ mẹ đang làm việc rất căng ở trang trại. Ông của con thường đến làm với bố mẹ. Ông giúp rất nhiều. Ông nói nhiều về con và mong con được khỏe mạnh.
Mẹ nhận được thư của cô con tuần rồi. Cô viết nhiều về con. Vậy là bây giờ con tập thể dục buổi sáng phải không, Hoa? Ở Huế con chẳng bao giờ thích dậy sớm. Ba mẹ rất vui khi nghe con hiện giờ đã dậy sớm.
Mẹ cũng hy vọng con đang tự chăm sóc mình. Cô con rất bận rộn, vậy phải nhớ giặt và ủi quần áo của con, vả đừng ăn quá nhiều kẹo hay thức khuya. Những thứ ấy có hại cho con.
Mẹ nhớ con lắm. Bố mẹ hy vọng sớm đến thăm con ở Hà Nội, có lẽ sau mùa gặt. Đừng quên viết thư cho mẹ nhé Hoa.
Thương,
Mẹ
Trả lời câu hỏi:
a) Because it’s nearly the harvest time again.
b) Her grandfather helps them on the farm.
c) They will probably go to Ha Noi after the harvest.
d) She knows how to take care of herself. She's doing what she didn't do when she was at home in Hue.
In the afternoon, we walked around the town and we walked to the seafront. After that, we visited the fishing port and we saw “Phật Bà Quan Âm” statue at Ling Ứng pagoda. It’s a great mountain over the sea. In the summit, it has an excellent view.
I took a lot of photos and I bought many things in the stands of the Artisan Fair that was in the sea front . We had a great time. Da Nang is a wonderful place. I love it because the weather’s good all the year.
I'm looking forward to hear from you soon.
Best wishes,
Nowadays, traffic jam is one of the biggest problems that many people care about. In VietNam , I think the city which has the worst traffic is Hanoi
The first problem is the traffic jam here. Why? In the rush hour of the day, there're too many people using the road. Last year, in 2013, many bridges were built so the problem of traffic jam was improved . However, in order to stop this problem , a kind of small car should be invented, and people should go to work by buses instead of [going by] motorbikes... Secondly, as you know, the roads in Vietnam are not as wide and clean as ones in other big countries. They're narrow, bumpy and dirty so it’s really hard for road users to drive safely. I think we should raise money to upgrade the roads in Vietnam.
Everyone knows that Vietnamese people are do not respect and don’t follow the traffic rules. That’s the main reason for everything. They wear helmets that are not strong enough to keep them safe when the accident happens, or when they ride too fast on small roads… The traffic can never be improved if they keep doing those things.
Finally, I hope the traffic in Vietnam will be improved in the futurre.
~~~ HAND and HPNY ~~~
1. Write 50 words about your last holiday:
Last holiday, I went to Hanoi - The capital of Vietnam - with my uncle. I went there by bus. It took me about 20 hours from Quang Ngai to there by bus.
When people are free, they often take me to supermarkets to play and go shopping. Every Sunday, they led me to visit a lot of beautiful and famous places such as Hoan Kiem lake, One Pillar Pagoda, Van Mieu - Quoc Tu Giam, Ba Dinh square, so on. I bought some souvenirs for my friends and my family. I had a great time and I will not forget.
Chúc bạn học tốt ^^