Mass parachute landing on Mars is completely feasible, but not economical (soft landing without reverse thrust is not yet possible). Americans have advanced core technologies, and China has...

The size of the impacted twin. 1. What kind of asteroid is this? Dimorphos is a small moon of an asteroid discovered in 2003, with a diameter of 170 meters, it is one of the smallest objects to be...

The current element system is still far from perfect, it just completes the reaction system, but it doesn't have all the teams. Fire c hangs water and evaporates. Grandpa, Yan Fei, Xiangling, and...

What is blockchain? Blockchain is functionally a distributed ledger, so what is a distributed ledger? Let's take a look at the following three points. Let’s look at the first point. The ledger...