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
2024-03-07
68
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、Because they cannot land at random.
B、Because they are not safe enough.
C、Because they are hard to refuel.
D、Because they make noises.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3514441.html
相关试题推荐
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
[originaltext]Wecontinueourdiscussionofplagiarism(剽窃).Lastweek,wes
[originaltext]Wecontinueourdiscussionofplagiarism(剽窃).Lastweek,wes
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbasketba
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbasketba
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbaske
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbaske
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbaske
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbaske
[originaltext]Asayoungman,HowardWhiteofPortland,Oregon,playedbaske
随机试题
ThefoundersoftheRepublicviewedtheirrevolutionprimarilyinpolitical
IwasborninFeb.12,1809,inHardinCounty,Kentucky.Myparentswereboth
[originaltext]M:Hi,Katie,howareyou?W:I’mdoinggood,andyouAlex?M:I’
Whateffectdoesexcessivepositiveionshaveonsomepeople?[br]Accordingto
Accordingtoanewsreport,the309servicestaffsworkingintheBeijing-Sh
Themillionsofcalculationsinvolved,hadtheybeendonebyhand,_____________
管饲引起腹泻的原因包括( )。A.管饲不引起腹泻 B.营养液温度40℃左右
对于颈椎前路手术的患者,主要需教会患者A.俯卧位训练 B.侧卧位训练 C.向
2012年全国国道网车流量较大的地区主要集中在北京、天津、上海、江苏、浙江、广东
互联网的基本应用中,信息需求方面一般包括()应用模式。A.网络新闻 B.搜索
最新回复
(
0
)