Monday, March 5, 2018
Thursday, March 1, 2018
Thursday, February 15, 2018
Fwd: Alzheimer's
Researchers have found that gradually depleting an enzyme called BACE1 completely reverses the formation of amyloid plaques in the brains of mice with Alzheimer's disease, thereby improving the animals' cognitive function. The study raises hopes that drugs targeting this enzyme will be able to successfully treat Alzheimer's disease in humans.
Tuesday, February 6, 2018
Saturday, February 3, 2018
Saturday, January 27, 2018
Friday, November 24, 2017
Galaxy Song - Monty Python Live in O2 Arena.
I was going to write a Facebook post about how absurd it all seems to
me, that we live on a big rock, rotating at 1037 miles an hour (less
as you move away from the equator), going around the Sun at 67,000
MPH, and moving around the galaxy at unfathomable speed, and all of
this is like a grain of sand on the beach of an immense cosmic ocean
that is forever expanding at an ever accelerating rate.
However, this video expresses it much better:
https://www.youtube.com/watch?v=fqBThWK8rqE
me, that we live on a big rock, rotating at 1037 miles an hour (less
as you move away from the equator), going around the Sun at 67,000
MPH, and moving around the galaxy at unfathomable speed, and all of
this is like a grain of sand on the beach of an immense cosmic ocean
that is forever expanding at an ever accelerating rate.
However, this video expresses it much better:
https://www.youtube.com/watch?v=fqBThWK8rqE
Sunday, November 19, 2017
Universe (Copy of Facebook Post.)
When I think of the Universe, I think of space. Lots and lots of space. There are around 100 billion galaxies, although I have heard that there might be more, and most galaxies contain at least 100 billion stars. Our Milky Way galaxy alone has between 100 and 400 billion stars and is a hundred thousand light years across. Our galaxy is so big that its gravitational attraction is strong enough to have smaller galaxies orbit it the way the moon orbits the earth.
But what the universe is made of is energy. Enormous amounts of it. Even empty space has energy. Most of the mass of elementary particles comes from the huge amount of energy inside those particles. Energy created the universe and energy causes it to expand at an ever accelerating rate. Energy created space itself.
Empty space is not empty, but full of fields that have energy in them. Everywhere there are fields that correspond to each elementary particle that makes up the universe, and a field for every force that defines how those particles interact. We can't see the fields, but we can observe the results of those fields. The universe is like a boiling pot of water full of energy, and we only observe what is on the surface.
Thursday, October 26, 2017
Thursday, September 28, 2017
Quantum Fields: The Real Building Blocks of the Universe - with David Tong
If you have any interest in science, here is a recent hour long video that explains what quantum field theory is, in an easy to understand and entertaining way. https://www.youtube.com/watch?v=zNVQfWC_evg
Wednesday, September 13, 2017
The GOLDEN AGE of SCIENCE FICTION Television
The Expanse looks promising as a "hard sci-fi", but the first season seemed to drag out without advancing the story that much. The show has a ton of characters, so none of them stand out.
RIP Dark Matter. It was brilliant.
Stargate Atlantis was the best of the 3 Stargate series. It was consistently good. Stargate SG-1 that preceded it was uneven, and a little rough in the first season, but it turned out to be a great series. Stargate Universe got off to a very weak start, but by the second (and last) season it was really wonderful.
Babylon 5 in the 1990's was science fiction on the cheap. They used workstation computers to generate their special effects to save money. The first season was not that great. But it had an extremely rich storyline. The show improved in the second season and it turned into a wonderful TV series.
Star Trek Enterprise was my favorite of all the Star Trek series.
As far as "space" shows go, I don't think anything beats Battlestar Galactica.
LOST is more fantasy than science fiction, although it had a few science fiction elements. It is mostly a drama series that blew everyone away at how great it is. It is also more complicated and harder to follow than most shows.
Sunday, September 10, 2017
Fwd: Google Alert - telomeres
The link might interest you. :-)
 | ||
| telomeres | ||
| NEWS | ||
| This is the secret to a longer life The researchers focused on telomeres, which are proteins found in the cell's nucleus that stabilize the ends of chromosomes. Confused? Let me ... |
Saturday, September 9, 2017
What if We Never Went to the Moon?
This video is remarkably statist. Everybody looks at the benefit of government spending, and not the cost. Suppose the $200 billion adjusted for inflation dollars had been spent on something more useful? Cure diseases? Not go into as much debt, which has been compounding for the last 50 years? Reduce the burden of government on the free enterprise system? For a long time we have had more government than we can afford.
Tuesday, September 5, 2017
Fwd: Reducing many age related diseases
The drugs being tested are called senolytic agents, because they target senescent cells. These are cells that have stopped dividing and secrete toxic chemicals that damage adjacent cells. Accumulation of senescent cells, which increases with age, is associated with chronic conditions, including diabetes, cardiovascular disease, most cancers, dementia, arthritis, osteopetrosis, and frailty.
Researchers at Mayo Clinic's Robert and Arlene Kogod Center on Aging developed the first senolytic drugs to target these harmful cells. In a recent study led by The Scripps Research Institute, Mayo Clinic researchers and others confirmed that the senolytic drugs discovered at Mayo effectively clear senescent cells while leaving normal cells unaffected. The study, which was published in Nature Communications, also describes a new screening platform for finding additional senolytic drugs that will more optimally target senescent cells. The platform, together with additional human cell assays, identified and confirmed a new category of senolytic drugs, which are called HSP90 inhibitors.
https://www.sciencedaily.com/
Friday, August 25, 2017
Tuesday, August 22, 2017
Friday, August 18, 2017
Fields
We are made off stuff. If you break the stuff down to the smallest possible level, you get elementary particles. But according to Quantum Field Theory, what we experience as elementary particles are just fluctuations in the fields for those particles, in the same way a photon is a fluctuation in the electromagnetic field, and an electron is just a fluctuation the electric field. These fields overlap each other and exist throughout all of space. They interact, like the way the Higgs field gives particles mass. Reality for us is what we perceive, but the true reality may be just the fields. You could think of them as God's computer program for the Universe.
Best wishes,
John Coffey
Monday, August 14, 2017
The Quantum Experiment that Broke Reality | Space Time | PBS Digital Studios
There are aspects of this experiment not mentioned that get even weirder. The bottom line is that particles moving through space act like waves. They don't become particles again until they are observed. The act of observing influences the event, and in some cases can influence the event after it has already happened. This is where it gets really weird.
There are alternate theories like the pilot wave theory, that more or less says that particles are just particles, but moving through an invisible field of waves.
Friday, August 11, 2017
Monday, August 7, 2017
Re: Top 10 Climate Change Lies Exposed
On Mon, Aug 7, 2017 at 2:47 AM, Albert Nelms <alnelms>
wrote:Another quick rundown of global warming lies. You've mentioned most of these issues in your debates with friends online.
https://youtu.be/ICGal_8qI8c
1. There is a long term consequence of raising the temperature 5 degrees celsius or more that is very bad, which is that the polar ice caps will completely melt. Based on current temperature trends, I don't think that this is likely to happen, and if it does happen, it will take 5000 years, giving us plenty of time to do something about it.
2. The direct effect of doubling CO2 in the atmosphere is an increase of 1.1 degrees celsius. Almost everybody agrees on this. There are a couple of dissenters who say that over geological periods of time you can't find a clear correlation, but there is so much else going on over geological periods, usually solar and orbital variation, that confuses the issue.
There are additional positive and negative feedbacks that are in dispute. Whereas the direct effect is 1.1 degrees celsius, the data since 1880 indicates to me that the Climate sensitivity is slightly under 2 degrees. That means that there is positive feedback, although solar variation could also be the cause. It also means that the climate sensitivity is less than the alarmists are claiming. I heard one lecturer say that the positive feedback was "0.6", which seems to me to be close.
Until about a week ago, I didn't see any evidence of positive feedback, but that was because I had miscalculated the Climate Sensitivity.
#3 and #4 are interesting points.
#12 He doesn't explain his point about acidity very well.
Warming does cause the oceans to release more CO2. There is also very little doubt that CO2 causes warming. The real issue is how much? The warming caused by CO2 is a logarithmic function, which means that you have to keep doubling the CO2 level to achieve the same result. Based on current temperature trends, we will run out of fossil fuels long before we reach an increase of 5 degrees celsius.
Wednesday, August 2, 2017
Re: Global Climate
Steve,
As I recall, the human contribution to total emitted carbon dioxide gasses is around 5%. The usual argument is that the CO2 both leaving and being put in the atmosphere was in balance before, and now it is not. Since about 1880 we have seen the atmospheric CO2 level go from about 280 PPM to around 400 PPM. It was 230 PPM in the preindustrial period. It is expected to reach 800 PPM by the year 2100. As long as it doesn't go higher than that, I think that this is more beneficial than detrimental.
Previously, I did my math wrong. I thought that an atmospheric increase of CO2 from 280 PPM to 400 PPm was a 70% increase, but that was because I did a brain fart on the math. Instead, it is about a 43% increase. I just now discovered my mistake. Doing a new calculation, based upon the 0.85 temperature increase since 1880, I get a new climate sensitivity to a doubling of CO2 of 1.98 degrees Celsius. However, the IPCC changed the low end of their range to only 1.5 degrees because they accepted papers that said that this was the climate sensitivity based upon 20nth century data. So other people are looking at recent data and are coming up with Climate Sensitivity numbers. The generally accepted range by the IPCC is from 1.5 to 4.5 degrees. Whereas the skeptics think that 1.5 degrees is the most the climate sensitivity could be, the IPCC think that it will be at least this much, if not much higher. I just watched a climate scientist claim that it is 6 degrees celsius.
I just found yet another source claiming that it will take 5,000 years for the polar ice caps to melt. This is the disaster scenario that the alarmists warn about. The temperature has to warm about 5 degrees celsius for this to happen. Obviously we have plenty of time to change course if the Climate Sensitivity is more than I think it is.
Correlation is not the same as causality. The biggest driver of temperature is solar variation. Ice core samples going back hundreds of thousands of years show that temperature increases precedes CO2 increases, and not the other way around. This is because warmer air causes the oceans to release more CO2. Although the two things are correlated, it doesn't necessarily mean that there is a clear causality relationship between CO2 and temperature. When I looked at temperature data, sometimes the two went in opposite directions. Although I am certain there is a greenhouse effect, CO2 may not the main driver of temperature.
--
Wednesday, June 21, 2017
Climate Change
See if you can follow my reasoning here. If I am wrong, I would like concrete reasons as to why I am wrong. Let's say that the predictions are correct, and the atmospheric CO2 levels by the year 2100 are 800 PPM, double of what we have now. I have no reason to doubt this. Based on the temperature record of the last 137 years, where the CO2 level has gone up roughly 72%, the likely atmospheric temperature increase would be about 1.2 degrees celsius, and there are a number of people who believe this. (However, during the Cretaceous period, a doubling of CO2 only resulted in an increase of 0.6 degrees Celsius, and there are some skeptics who think that this is what would happen again.) This is not enough to melt the polar ice caps, which is the doomsday scenario some have predicted. However, the IPCC predicts a different temperature increase, giving a range anywhere from 1.5 to 4.5 degrees, with the average being about 3 degrees. Again, not sufficient enough to melt the polar ice caps. However, if we take the upper figure to be true, then we are indeed in danger of melting the polar ice caps, but I have read from multiple sources that it would take thousands of years for the polar ice caps to melt. This would give us plenty of time to remedy the situation, and we do have remedies. It is almost certain that we will have nuclear fusion by the mid 21st century, and therefor we could phase out fossil fuels as much as we need to. There is also this thing called Iron Fertilization that would allow us to remove CO2 from the atmosphere. Therefor I see no reason to panic, nor any reason to impose onerous energy taxes that would make energy unaffordable to many, nor any reason to impose any other kind of government mandate. At least not in the short term.
Thursday, June 8, 2017
Wednesday, May 3, 2017
Monckton's Mathematical Proof - Climate Sensitivity is Low
I don't pretend to understand the math, which he doesn't bother to explain, but if the math presented here is correct, then this could be one of the most significant findings of our lifetime.
Lord Monckton is a bit wordy, so I created the link above to start 27 minutes into the video where he gets to his main points.
This seems to give credence to my earlier observation that existing data suggests a relatively low climate sensitivity. Other people have noted that predictions of large climate sensitivity are not supported by the observations.
Lord Monckton sees the climate debate as a struggle between freedom and those who oppose it, and he sees this as a conspiracy. Although I am also concerned about how climate alarmism will impact our freedom, it really should be a separate issue from the climate science, because it could bias how we view this. However, it is possible that the alarmists are also biased.
I also watched some other videos by climate alarmists who noted that if we don't act we will face dire consequences. These same videos further claimed that the reason we don't act is that the threat is not very visible to us. It is not the same as seeing a tiger coming at you, but these videos claim that the threat is real nevertheless.
If the alarmists are correct, then I certainly want to know that. I tried to find a refutation to Monckton's recent claims above, but I think that it is too soon. I hope that the science community takes this seriously and either refutes Monckton's math or confirms it. The consequences to us either way are quite significant, and we need good sound science in to determine the correct course of action.
There are a couple of other factors that I have commented on before, but are almost never mentioned by anybody else. The first is that nuclear fusion as a power source will very likely happen in our lifetime, which in my opinion will make the entire argument mute. The second is that a technique called iron fertilization would allow us to remove as much CO2 from the atmosphere as we want.
In other words, if you argue that the Earth has a low climate sensitivity to CO2, you are also arguing for a low climate sensitivity to other influences such as solar irradiance, orbital changes, and volcanic emissions. In fact, as shown in Figure 1, the climate is less sensitive to changes in solar activity than greenhouse gases. Thus when arguing for low climate sensitivity, it becomes difficult to explain past climate changes. For example, between glacial and interglacial periods, the planet's average temperature changes on the order of 6°C (more like 8-10°C in the Antarctic). If the climate sensitivity is low, for example due to increasing low-lying cloud cover reflecting more sunlight as a response to global warming, then how can these large past climate changes be explained?
https://www.skepticalscience.com/climate-sensitivity-advanced.htm
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