Jack's blog

Q1: Do you have a smart speaker at home? A: No,this is the first time I heard about it Q2:  What is a smart speaker? A: Smart speaker is a type of voice command device. Q3: How does a smart speaker work? A: Smart speaker have virtual assistant which like Apple's Siri, Microsoft's Cortana,when smart speaker receive particular voice it will  respond corresponding action.

    When I listen about new technology I always feel surprise and want to praise how can engineers create some amazing thing. Hyperloop also surprised me because it use vacuum to reduce resistance. It is a cool idea for me but I also think about how to appliance this in reality, here has a question I want to know.  where really need such a high speed to transport something? Hyperloop is too fast to use at a smile place such as Taiwan is a example. Taiwan's HSR can't play it's max speed because Taiwan is too short. This problem will limit Hyperloop only can use at a place which is very broad, and a broad place always haven't too many people and usually very backward which like Mongolia. If Hyperloop use at backward place what kind of  things will be transported? If transport material it must cost so much because material usually is a lot of and don't need too fast. If Hyperloop is use to transport people whether have enough people can afford it?    This i...