TAG: Nanoparticles

It’s Boiling Under The Sun

It's boiling under the sun

Basic physics states that steam cannot exist without a boiling liquid. An innovative and possibly revolutionary new method of utilizing solar power follows that law. The problem with steam power is the inefficiency and waste associated with the initial boil of a liquid. Traditional methods of boiling liquid are dependent on convection, a process involving both conduction (heat diffusion) and advection (heat transfer by bulk fluid flow) whereby heat is introduced to the material. Slowly the temperature of the liquid increases from the heat application area to the other areas of the liquid. This is the method stove-top heating elements use,… read more

Glowing Trees

irtree

The blockbuster movie Avatar depicted many inspirational and creative ideas of new forms of life. Imagine if one such idea, the glowing trees providing luminescence in the dark, could become a reality. Modern display and lighting devices use LED for illumination,which includes phosphor powder to simulate light of different wavelengths. These phosphor powders are highly toxic and are expensive. Dr Yen-Hsun Su of the Academia Sinica in Taiwan, has led a team that have discovered a way to develop a less toxic substance to replace the phosphor powder which poses a serious threat to human health. This project resulted in bio-LEDs, developed by… read more