October 11th, 2007

Human Organs

Stem Cells Printed in 3-D with Inkjet Devices

The creation of implantable human organs with an ink-jet printer isn't as far-fetched as it might seem, a materials scientist said—at least in the future. 

Scientists already use ink-jet cartridges to "print" stem cells into exacting patterns, and now engineers are taking the technology to a whole new dimension—quite literally—by exploring ways to print 3-D structures of cells.

 

"It's a milestone that we can print all types of cells onto a surface with an ink-jet printer without them dying, even stem cells," said Paul Calvert, a materials scientist at the University of Massachusetts Dartmouth. "Doing this successfully in three dimensions, however, is like going from a black-and-white to a full-color."

 

Calvert, who details the state of cell-printing research in the Oct. 12 issue of the journal Science, said 3-D techniques could help unravel the mysteries of cell-to-cell communication and, perhaps in the distant future, manufacture human organs from scratch. 

Kemo D. (a.k.a. no.7)
www.beyondgenes.com

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Cajamarquilla

The Pisco Valley 


Thousands of man-sized holes are carved into the barren rock near
Pisco Valley, Peru on a plain called Cajamarquilla.

 

These strange holes, stretching for a mile over uneven mountain terrain, were here for so long that the local people have no idea who made them, or why. Funny thing is no one really saw the big picture until the area was seen from the air.

 

Archeologists have speculated they were dug to store grain in. Two problems with this, say the folks thinking out of the box: there were a lot easier ways to create storage containers than the hard work and decades it must have taken to chip out all of these, and it would have made more sense, if these were to store grain, to build several huge chambers.

 

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Image of the Day

The Lost City of Tikal



Tikal
is the gem of all Mayan ruins in Central America. these temples were built to observe the motion of the stars and the planets, to reinforce the sophisticated and remarkably accurate Mayan calendar.

Kemo D. (a.k.a. no.7)

 

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The Lost Treasure

Lost Treasure of the Incas

 

The legend says: On the death of the last Inca emperor Atahualpa at the hands of the Spanish Conquistadors, the Inca queen gave orders for the tunnel entrances to be sealed forever, before she herself committed suicide. Numerous pack trains of gold and jewels were hastily concealed, some it is said thrown into lakes, like the great gold chain which disappeared forever.

 

I cast me eyes over the shelves of obscure books, looking for something to catch my interest. I found it in a corner, in a glass-fronted bookcase. A thick tome called "Isis Unveiled" by H.P.Blavatsky. Mostly full of obscure and hard to follow texts, one section however caught my attention and I read as follows:

 

"Going southward from Lima, by water, we reached a point near Arica at sunset, and were struck by the appearance of an enormous rock, nearly perpendicular; which stood in mournful solitude on the shore, apart from the range of the Andes. It was the tomb of the Incas. As the last rays of the setting sun strike the face of the rock, one can make out, with an ordinary opera-glass, some curious hieroglyphics inscribed on the volcanic surface.

 

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