cesis

Why not?

Add a fin to a baloon and you can steer it.

And once the baloon can hold direction in the wind with the help of the fin, you can add sail to actually get some propulsion in direction other than wind.

Next week?

-70C can be expected in Arctic.

And in this particular case the underlying text is visible even with naked eye.

Strictly speaking every 10m under water increases pressure by one bar. So elastic bag 10m under water would take up 2x less space.

Actually steam and fog are different things. Fog is already condensed steam that consists of small water droplets. This technology captures the condensed water droplets and at this point no no extra latent energy from steam is released.