|
|
|
|
but
still is there
Too good that sometimes there
is something even we can't see it. If not, you would descend to the ground in 8.2 seconds,
from CN Tower in Toronto (330 meters, in case you have good aerodynamics). |
|
 |
|
|
|
|
because
the wavelength is not right
On this picture, you can
see fire. But we know for sure, that there is something else we can't see: heat. This is
something we learned by just sitting in front of it. And as well we know that there is also
a painful version to this simple lesson. In case we came a little too close, trying to speed
up the learning process.
By the way, with our eyes, we can't see the infrared radiation, that causes the warming up. The
wavelength of the thermal radiation is bigger than the one of the light, that is visible to us.
|
|

 |