Friday, 19 February 2016

Blood drying

If someone gets shot the blood droplets will hit the ground.  With enough time the Water from the blood will evaporate changing the surface tension gradient across the the droplet.  These gradients can cause convection inside the drop and pushes the red blood cells towards the outer part of the drop leaving different patterns.  The patterns depend on what parts of the blood are deposited. 

Looking at the patterns it can show a difference between different types of red blood cells e.g. anemic vs. normal blood.

Tuesday, 9 February 2016

Help! I’m Trapped in a Drop of Water

Help! I’m Trapped in a Drop of Water: A fish is entombed in a water droplet in zero-g … or is it?

Pretty awesome!  Water surface tension and a drop elevator (creating a zero gravity environment) keeps the fish in place. 

Saturday, 6 February 2016

How to skip stones? Scientists Perfect the Skipping Stone - D-brief

The best way to skip stones?  It has something to do with surface tension. Find out here: Scientists Perfect the Skipping Stone - D-brief: Scientists have created a better version of the skipping stone that's not a stone at all, but an elastic rubber ball.

Wednesday, 3 February 2016

Smart nanogels at the air/water interface: structural studies by neutron reflectivity

In order to do Neutron Reflectivity Measurments you need to have precise measurements at the surface tension.  Smart nanogels that contain a switchable characteristic that can be used in drug delivery are studied with this technique.

Go to link: