Do you have a feeling a laptop desk help trim down warmness build up contained by laptop?

Answer:

Yes it can, simply because at hand is a flat surface to place the notebook on. Putting the notebook on your lap, pillow or any other soft surface will build warmth.
nope
No, it does not. It only keep your legs from being scalded by the hot laptop. You can, however, buy a fan that is to say flat and sits under your laptop. The admirer helps to cool the laptop and keep your legs cool. I have used one for a long time presently and love it.
yes
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yes
Yes, it does. Try one to see the difference. Laptop desks don't cost much but they effectively lessen heat build up within laptops upto 20%