Meteorites delivered chemistry, and perhaps membranes, too.

The companies want the bitumen that Nature put in the oily dirt.

That's your articular cartilage, and those are your synovial membranes.

For this fish, it's actually whole cells with nuclei and membranes.

These membranes are also quite similar, morphologically and functionally, to the membranes in your body, and we can use these, as they say, to form the body of our protocell.

And I present to you a concept that these are extended neurological membranes.

A company called Aquaporin is starting to make desalination membranes mimicking this technology.

And in nature there are lots of examples of very efficient structures based on pressurized membranes.

Heart rates are slower you live longer diffusion of oxygen and resources across membranes is slower, etc.

Solid substances (powders) may become corrosive or irritant when moistened or in contact with moist skin or mucous membranes. .

But those bubbles have membranes very similar to the membrane of every cell of every living thing on Earth looks like, like this.

Obama s approval should be conditional on Canada enforcing serious environmental safeguards. Many bitumen companies claim that they already abide by such safeguards but environmentalists skepticism is justified.

In part, amphibians are good indicators and more sensitive because they don't have protection from contaminants in the water no eggshells, no membranes and no placenta.

The total length of roads in the islands outside Stanley continues to increase and has now reached 450 km, of which about 10 per cent is hand surfaced bitumen, asphalt or concrete.

I've been a scanning electron microscopist for many years, I have thousands of electron micrographs, and when I'm staring at the mycelium, I realize that they are microfiltration membranes.

An older technology features vast strip mines, huge diggers, and trucks carting oily dirt to industrial scale pressure cookers that drain off the bitumen. A newer technology leaves the surface untouched by pumping steam into the subsoil.

And all I wanted to show you is we can set up molecules in membranes, in real cells, and then it sets up a kind of molecular Darwinism, a molecular survival of the fittest.

Mandatory sequestration could make net CO2 emissions from bitumen extraction no worse than those from conventional oil wells, and perhaps even better. Another obvious condition is mandatory timetables for restoring strip mines and tailing ponds to their natural condition.

Bitumen permeates the dirt at the surface or, where thin layers of compost and sediment intervene, somewhat below basement levels. Grasping a handful of dirt from a riverbank does leave one s hand more oily than tarred, and the greasy dirt is somewhat sandy.

Environmentalists make several arguments for leaving the bitumen in the dirt. They disparage hideous strip mines and toxic tailing ponds that even superstar marketers cannot greenwash. 160 The scale is unusual, but open pit mines and tailing ponds are normal mining operations everywhere.

Because these anatomical features persist into early childhood, the dura may remain similarly vulnerable to bleeding beyond the newborn period. Indeed, both birth related bleeds and those attributed to shaking are most often located in the folds of membranes covering the brain that have more and larger blood vessels at this age than later in life.