neck collar on a Martian.
As they have pointed out ... Dr.Zamboni will go to any length .... to prove his point.

MrSuccess
I think the ISA's work and that of Ms. Cristoforetti are likely more more important to NASA than a schoolchild's experiment. This is a non-trivial investigation into bloodflow in microgravity and will likely have implications relating to serious known space health effects. I expect the Principal Investigator on the ground was probably Dr. Zamboni. The ringing endorsements will come after the results are reported, though I think to date there has been more than a rubber stamp.On the science side, I performed an ultrasound session for the Italian Space Agency experiment Drain Brain. The specific hardware of this experiment was lost on the Orbital mishap, but a replacement hardware will be on its way soon on the SpX-5 cargo mission. In the meantime, we could get the science started with the standard ultrasound equipment of the Space Station.
Of course, I’m not able to do an ultrasound on my own: a private audio channel was set up with the Principal Investigator on the ground, who provided remote guidance based on real-time data from the ultrasound machine. He could also see a live video downlink of me performing the operations. Things went pretty smoothly, especially thanks to the fact that in the morning I had assisted Butch in performing his ultrasound (a more complex one, requiring two people) for the experiment Cardio-Ox. Butch had introduced me to a great trick of space ultrasound: no need to use a messy gel on the ultrasound probe, you can just use water!
This is why NASA contacted Dr. Zamboni:Drain Brain studies how blood returns to the heart from the brain through veins in an astronaut’s neck. This can help scientists better understand the mechanisms that ensure proper blood flow in microgravity. ISS Crewmembers report a variety of neurological symptoms that may be related to changes in this blood flow. The project also studies how blood flow changes in response to crewmember schedules in space, which do not follow the typical day-night schedule of most humans on Earth.
Earth Applications
The instrument developed for Drain Brain, called a strain-gauge plethysmograph, does not require any surgery or special knowledge, which could make it an ideal tool for monitoring patients with a wide range of heart or brain disorders. In previous research, the scientists who developed the instrument identified a possible link between some neurodegenerative disorders, such as multiple sclerosis, and blockage of veins that connect to the brain. Researchers are also interested in studying the connection between these brain-related veins and cognitive disorders, such as Alzheimer’s disease. Drain Brain’s novel system could be a new way to screen for this vein abnormality.
http://www.nasa.gov/mission_pages/stati ... /1278.html
http://ccsviinms.blogspot.com/2014/11/n ... antha.htmlSome of the neurological issues being reported by astronauts living in microgravity include loss of vision, fatigue and headaches, possibly due to increased intracranial pressure. One in five astronauts report changes in vision after returning to earth, and many problems involve the optic nerve, also an area of change in multiple sclerosis, which could be related to disturbed venous flow. After five to six months in microgravity, 20% of the astronauts are noting vision problems.
21 U.S. astronauts that have flown on the International Space Station for long flights (which tend to be five to six months) face visual problems. These include “hyperopic shift, scotoma, and choroidal folds to cotton wool spots, optic nerve sheath distension, globe flattening and edema of the optic nerve,” states the University of Houston, which is collaborating with NASA on a long-term study of astronauts while they’re in orbit. http://www.universetoday.com/114161/eye ... uts-study/
"What we are seeing is flattening of the globe, swelling of the optic nerve, a far-sighted shift, and choroidal folds," said Dr. C. Robert Gibson, one of authors of the study published in the October 2011 issue of Ophthalmology, the journal of the American Academy of Ophthalmology. "We think it is intracranial pressure related, but we're not sure; it could also be due to an increase in pressure along the optic nerve itself or some kind of localized change to the back of the eyeball."
http://www.nasa.gov/mission_pages/stati ... ision.html
These black spots, swelling of the optic nerve, and changes to vision are seen in increased intracranial pressure, as well as multiple sclerosis. My husband had all of these issues, and a loss of peripheral vision, as a child. It would decades before he would be diagnosed with MS, and after that have a repair of his malformed venous system.
It will be interesting to learn what the Drain Brain study teaches us about venous return and the long terms affects of micorgravity. It is absurd to claim that slowed venous drainage does not matter to brain and eye health.
If there is a stenosis in a neck vein, (or an absence of gravity) it seems to me that a possible response from the heart, is to increase pressure towards the brain to compensate, assuring inflow is adequate for the required outflow (speaking from the heart's point of view). This will be part of the brain and heart's autonomic repertoire, using artery diameters and pumping force from the heart.cheerleader wrote: possibly due to increased intracranial pressure
It would be difficult especially since you couldn't keep the water in the pan in the first place.MrSuccess wrote:I am sure NASA gets lot's of silly and/or suggestions.
MrSuccess wonders how one may boil an egg.It probably keeps floating out of the pan !
-Tom Lehrer"Once the rockets are up, who cares where they come down?
That's not my department!" says Wernher von Braun