I can not see the photo. Maybe it is caused by poor net connection. Transportation tools are important for people's life, and innovation of technology brings convenience to people. Bicycles, automobiles, metros, trains, ships and airplanes are most important.

  Aha, interesting...
1. The first pic, looking at this, mom must say,"What a relief!" But the baby, you know, the jarring, jerking, noise, will be crazy I think.
2. It's so funny, and the inventor is also imaginative, but will this device keep balance?
3. What the... I have no notion of this...GAOQIAO...?
4. Where is the zoophilist (find this word in my dictionary, hah)?
5. Sledge car?
6. Ooooh, MAN IN BLACK? WILL SMITH...
7. Running machine or Segway?
8. In the playground, I will try it, or on the lake
9. He goes bananas, I'm sure about this.
10. Does it have wheels?

haha. It turns ourt it was not just me. I was really slow at night.

5. it is a motor not sledge cart.
6. It reminds me of Smith too
7. I am sure it will save some energy while converting stepping to wheeling.
8.
9. it depends on the rocket propelling power
10. wheels hidden underneath

I now can see the photos, and they are very interesting indeed!