Tuesday, September 23, 2014

astro picture for the day


Image credit: NASA, ESA, H. Weaver (JHUAPL), A. Stern (SwRI), and the HST Pluto Companion Search Team.

Monday, September 22, 2014

astro picture for the day


ESA/NASA Hubble Space Telescope image

Carl Sagan - A Way of Thinking

The link above is a vimeo video of some of the thought of Carl Sagan.  They also have some about Jacob Bronowski. I actually like the Carl Sagan video better than the Jacob Bronowski tribute video here; but, they probably don't appreciate Jacob Bronowski!

Alright, I'll link the vimeo tribute video to Jacob Bronowski as well,

Jacob Bronowski - The Ascent of Man

Tuesday, September 16, 2014

astro picture for the day/ John Romer's 'Testament' is currently up on youtube!


Image credit: IPHAS, Royal Astronomical Society

- Science/Technology for the day,

Physicists design zero-friction quantum engine

-17Sep2014 edit,

John Romer's 'Testament' is currently up on youtube!


You should be able to find the rest . . .

I don't think there's much more to say about John Romer's 'Testament' than I've said about religion/mythology throughout this blog. I can't help noting that John starts the video series in a cemetery.  You would never start a mathematics or physics documentary in a cemetery!  Only in a religion documentary would that make sense at all!

Well, John Romer mixes religious apologetics and scientific archaeology of the bible in a rather eclectic way. Like how the god concept is a vague concept that can sweep away all problems/questions without actually explaining anything(god did it; and if its a bad thing, they say 'god works in mysterious ways'), and Paul's apologetics of "i'll be whatever I need to be, whether jew, heathen, to convert everybody to his religion", John Romer mixes these excuses for everything with scientific archaeology.  It's almost as if he wants to slip in the archaeological revelations without people knowing.

-18Sep2014 edit,

Carl Sagan Cosmos

Somebody has found a way to getting Carl Sagan's Cosmos up on the web again; so, I link to episode one just above.

Saturday, September 6, 2014

astro picture for the day


Image Credit & Copyright: Terry Hancock (Down Under Observatory)


- Nanotechnology extra,

PaperClip: rapid multi-part DNA assembly from existing libraries

DNA-nanotech was a hoped for enabling technology for nano-manufacturing; it's either been too soft(overcome in many ways), or too slow(progress has gone from years/months to weeks, then days, and now hours and minutes as of last year), or too expensive to make the dna itself.  There's been advances in reducing the cost of dna supplies; but, obviously not enough.  Even Paul Rothemund who invented dna-origami has recently turned to rna-origami.  I reported this not to long ago here on this blog. Well, now they've finally reduced the cost and awkwardness of dna supplies.

Although the article says dna manufacture is easy, it still takes someone with the knowledge to handle proteins and so on; but, it's comparatively easy and less expensive to use dna now.  So, all the great developments over the last decade should be more readily available.

What could possibly hold dna-nanotechnology back now! lol!

- 11Sep2014 update,

Within a week or two since the announcement of a soft-biotech nano-assembly line, another group has announced a nano-assembly line,

Chemists create 'assembly-line' for organic molecules

Monday, September 1, 2014

astro picture for the day


ESA/NASA Hubble Space Telescope image

 
Recently, nanotech researchers from Europe have reported a primitive working nanomanufacturing system.  It uses proteins walking along nanotubes like this. Eukaryotic cells(as opposed to bacterial cells) have these microtubules coming out of their inner cell membrane that houses the dna.  The microtubules also gives the cell a certain amount of rigidity.
 
I had posted "Lives of a Cell" pretty early on in this blog; that particular youtube has been taken down. I'm sure one can find another youtube of the lives of a cell.  The youtube above is similar.



astro picture for the day


Image Credit & Copyright: Michael Miller