Gadgets Sci/Tech

Friday Finds – Coronal Mass Ejection!

First, here are my posts from this week:

And a few new things you might find interesting:

Wired’s GeekDad column tells parents what they need to know about Cars 2.  Sounds better than what I’m expecting to be honest, and I’m from a place that worships at the altar of NASCAR.

Also at Wired, the Sun has sent a Coronal Mass Ejection towards Earth.  The phrase ‘Coronal Mass Ejection’ just sounds awesome to me.

Netflix is now on a few select Android devices, with more to come.

Lifehacker has a whole series of Night School posts – they take a subject and give a layman the basics to improve themselves at it.  The current series is about photography, including how best to use the automated and manual settings on a camera, helping to understand ISO and aperture settings, and the like.  They’ve also covered video editing.

New trend in movie posters – Diagonal!

Finally, looking back on old posts here I found this:  the Ultra-fast, Ultra-intense Laser.  The applications they are looking at for this tech are awesome, whether it’s bonding replacement joints to bone, killing cancer cells, or, you know, creating Wolverine.


Ultra-fast, Ultra-intense Laser Kills Cancer, Bonds Metal to Bone

Researchers at the University of Missouri are testing practical applications of a UUL (Ultra-fast, Ultra-intense Laser), or femtosecond laser. Because it’s pulses last one quadrillionth of a second, there is little transfer of heat to the areas surrounding the target. Quoted:

What makes the femtosecond laser different from other lasers is its unique capacity to interact with its target without transferring heat to the area surrounding its mark. The intensity of the power gets the job done while the speed ensures heat does not spread. Results are clean cuts, strong welds and precision destruction of very small targets, such as cancer cells, with no injury to surrounding materials. Tzou hopes that the laser would essentially eliminate the need for harmful chemical therapy used in cancer treatments.

As mentioned, one of the other potential uses is to assist in the bonding of metal to bone…which would be very helpful to doctors that are replacing joints.

Associate Professor Yuwen Zhang and Professor Jinn-Kuen Chen recently received a grant from the National Science Foundation to use the laser to €œsinter€ metal powders€”turn them into a solid, yet porous, mass using heat but without massive liquefaction€”a process which can help improve the bond between joint implants and bone.

€œWith the laser, we can melt a very thin strip around titanium micro- and nanoparticles and ultimately control the porosity of the bridge connecting the bone and the alloy,€ Zhang said. €œThe procedure allows the particles to bond strongly, conforming to the two different surfaces.€

It’s noted that the Defense Department is interested, providing grant money to research Military applications (Wolverine, anyone?). Thanks to Gizmodo.