~mandychen~

(A) Do you have a smart speaker at home?  →   Yes, there is Google Assistant on my smartphone. (B) What is a smart speaker?  →   A smart speaker is a wireless and smart audio playback device that uses several types of connectivity for additional functions. You can ask a wide variety of questions, it will tell you, for example, weather or news, you can play music when you want it... it can do all kinds of things! Just give it a voice command and it will do what you want! (C) How does a smart speaker work?  →  The key to smart speaker operation is the speech recognition technology used. Using speech recognition, smart speakers can understand what is being said and perform operations on them.

From today's class,  I learned that the advantages of the Hyperloop system  are that it is safe, fast, and efficient,  and it is known from the movie that the Hyperloop system is estimated to cost $6 billion,  which is much cheaper than the $70 billion high-speed rail network.  I learned about the Hyperloop system from this class. I think this is a great technology, which not only makes our life more convenient,  but also makes great progress in transportation.