首页
登录
职称英语
[originaltext] Good afternoon, everyone. Today, I’ll talk about how autonomo
[originaltext] Good afternoon, everyone. Today, I’ll talk about how autonomo
游客
2023-08-05
55
管理
问题
Good afternoon, everyone. Today, I’ll talk about how autonomous flying taxis could change the way you travel. Cities are getting more populated. The roads are full, and it’s really difficult to expand them. And so in a lot of places, there really aren’t a lot of good solutions for getting around traffic. But what if you could fly over it? The sky is underutilized, and I would argue it will never be as congested as the roads are. In many cases, flying can be a long-term, compelling alternative to traveling on the ground.
One of the first things we need is an aircraft that can take off and land in small spaces and quickly take you where you want to go. And helicopters can do that today, but traditionally, helicopters have been just a little bit too expensive, just a little too hard to pilot and just a little too noisy to be used for daily transportation in cities. Well, electric flight and autonomy are changing that.
Electric flight, in particular, unlocks new possibilities for vehicle configurations that we just could not explore in the past. If you use electric motors, you can have many of them around the aircraft, and it doesn’t add a lot of extra weight. And that gives you redundancy and safety. And also, they are cleaner, cheaper and quieter than internal combustion engines. Autonomy allows the transportation network to scale, and I actually think it makes the aircraft safer. Commercial flights are already automated for most of their duration, and I believe there will come a day when we won’t even trust an airplane that required a human to fly.
So, one of our teams at A3 wanted to see just how close this future really was. So they built and flew a prototype of one such vehicle. And they made a point of only using mature, commercially available technologies today. We call it Vahana. It’s fully electric. It takes off and lands vertically, but flies forward like a regular airplane. It’s fully self-piloted. You push a button, and it takes off, flies and lands, all by itself. The prototype that you see here is designed to carry a single passenger and luggage. And it can go about 20 miles in 15 minutes. And our estimate for a trip like that is it would cost around 40 dollars, which you can really build a business around.
Question 16. Why does the speaker say traditional helicopters are not fit for daily transportation?
Question 17. What do we learn about electric flight and autonomy?
Question 18. What do we learn about Vahana?
选项
A、Autonomy makes the transportation network more comprehensive.
B、Electric motors are more efficient than internal combustion engines.
C、The aircraft adds little extra weight with many electric motors on it.
D、Commercial flights have already been automated for all of their duration.
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2898182.html
相关试题推荐
[originaltext]Hello,ladiesandgentlemen.Welcometotoday’slecture.First
[originaltext]Formostcollegestudents,themaingoalofhighereducationise
[originaltext]Formostcollegestudents,themaingoalofhighereducationise
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthed
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthed
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthed
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthed
[originaltext]Everyonefacesdifficultiesfromtimetotime.Sometimesthed
[originaltext]CaliforniahasbecomethefirstUSstatetoapproveplanstorequ
[originaltext]CaliforniahasbecomethefirstUSstatetoapproveplanstorequ
随机试题
假定你是王大军的哥哥,王大军的同学陈斌早上9点打电话来找他,恰巧他不在。请你给你弟弟写一个电话留言条。From:ChenBinTo:WangD
Sharingaccommodationis______.[br]Studentswhosharewithothersinaccommod
Waffles?Frenchtoast?Bacon?Bigbreakfastsmaybeathingofthepast.Acc
TheprobablerelationshipbetweenMarkandWendyisthattheyarehusbandandwi
砌体结构中钢筋混凝土挑梁,埋入砌体内的长度与其挑出长度之比,以下何项为适宜?(
A.昏迷 B.心脏病 C.脑膜刺激征 D.三偏征 E.血性脑脊液脑栓塞的
除下列哪项外,均可判断为病理性黄疸A.黄疸出现早(生后24小时内) B.每日上
下列机构中,在我国农村地区机构网点分布最广、支农服务功能发挥最为充分的是( )。
家住A市东区的刘某因手机过时,常琢磨换部新手机。一日,刘某在A市南区的新天地商城
对于投资项目,“多数群众理解支持但少部分人对项目有意见,通过有效工作可防范和化解
最新回复
(
0
)