This is a dry, warm winter, so barren and withered that it doesn't support the activity of skating or skiing. But today modern technologies can change this a bit. I upload some shots to show this.

This is the machine that is equipped with a large nozzle for spraying and sucking tap water.

Before, we saw pesticide-spraying nozzles working along the street but with a much smaller diameter, though a similar shape.

You need fluid dynamics ABC and heat transfer ABC and a bit thermodynamics at least to understand its mechanism.

This is different from the machines used previously in places such as a skiing hill for professionals, dedicated to those rich wolves. Now a great numberpublic parks in this city enjoy using the machine.

At least there’s some snow,this year’s winter is warmer than previous so there’s no natural snow yet(at least in my place)

And also happy new year to you Mooreyuan