A place I can put my thoughts on science, teaching and the human condition, and also occasionally attempt to influence policy makers (lots of luck!).
Thursday, November 9, 2017
Tuesday, October 31, 2017
An Interstellar Visitor
Astronomers have long speculated that debris from exoplanet formation could be ejected from another solar system but nothing so far has been observed (if we ignore the domestic molecules formed from elements created by supernova and kilonova explosions). On October 19 an unusual small object designated A/2017 was detected by the Panoramic Survey Telescope and Rapid Response System or Pan-STARRS 1 telescope in Hawaii by a postdoctoral fellow, Rob Weryk, while searching for near earth objects for NASA. The motion of this body could not be explained as a normal asteroid or comet since it did not follow the normal orbits of near-earth objects but was on a hyperbolic trajectory crossing the ecliptic (plane of the planets) inside Mercury’s orbit and then made a hairpin turn due to the gravity of the sun under the earth’s orbit at the rapid speed of 27 miles/sec. Weryk and Karen Meech, an astronomer who studies small bodies possibly involved in solar system formation, both realized that this object probably came from another solar system around another star. Davide Farnocchia and Matt Holman, scientists at NASA's Center for Near-Earth Object Studies (CNEOS) at the agency's Jet Propulsion Laboratory also concluded that the evidence suggested an interstellar origin!!! A graph of the orbit is shown in the following UTube video
https://www.youtube.com/watch?v=uYBYrFJoL2E.
https://www.youtube.com/watch?v=uYBYrFJoL2E.
If this is true, this asteroid must have spent millions if not billions of years traveling from another solar system to the earth. I find this discovery fantastic and exciting.
An astronomer friend of mine, Ben Zuckerman, reminded me that this type of astronomical phenomenon makes the suggestion of "panspermia" or "lithopanspermia" - that life arrived on earth from other planets or even from exoplanets in other solar systems - in the realm of possibility.
An astronomer friend of mine, Ben Zuckerman, reminded me that this type of astronomical phenomenon makes the suggestion of "panspermia" or "lithopanspermia" - that life arrived on earth from other planets or even from exoplanets in other solar systems - in the realm of possibility.
Monday, October 2, 2017
The Nevada Massacre
The massacre of over 50 people in a Nevada hotel by one man with an automatic rifle is due entirely to the Nevada gun laws or lack thereof. Nevada has some of the most relaxed gun laws in the United States. Firearm owners there are not required to have a license, and do not have to register their weapons. The state does not prohibit the sale of assault rifles, and places no limits on the number of firearms an individual can possess and the capacity of ammunition magazines.
The second amendment to the US Constitution states: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." Since there are no longer any militias in this country as in the days when the US Constitution was being written, this clearly does not allow people to "keep and bear arms" as was interpreted by the Supreme Court in 2008 in the Heller decision and is used by the right wing as justification for the unlimited ownership of guns in this country.
This however was not the worst Supreme Court decision in our history. That goes to the Dred Scott decision in 1857 by the Taney Court. It has been said that this decision was characterized by "convoluted logic, tortured misreadings of key constitutional provisions, contempt of precedent, distortion of history, and judicial activism on a world-historical scale". It led eventually to the Civil War.
The Heller decision has led to the modern day gun lobby headed by the National Rifle Association or NRA and to this country being the most violent civilized country in the world. The NRA has not yet made its normal soothing statements about the holy American gun rights after the Nevada massacre, since it must first wash the blood off its hands.
Guns must be banned from our country as is the case in England and every other civilized country. There will be enough death and destruction in our country and in the world as climate warming gets worse, but the absence of guns in private hands will decrease the killing of innocent people.
Sunday, October 1, 2017
It is Time...
For the sake of this country and the entire world, Trump must be removed as President of the United States. He is Commander in Chief of the military forces in this country and has the sole authority to launch nuclear weapons. Ponder that for a moment. We are relentlessly moving towards a military confrontation (=war) with North Korea, and Trump’s response is to threaten “fire and fury” and call the North Korean dictator schoolyard names such as Rocket Man and Little Rocket Man. Very recently there was an exciting news story that the United States had a “back channel” with North Korea which could possibly be used for negotiation, and Trump tells the Secretary of State “Don’t waste time talking to Little Rocket Man” and “Save your energy, Rex, we’ll do what has to be done”, a Trumpian way of saying that we will attack North Korea, thereby initiating World War III which almost certainly would involve the use of nuclear weapons. This is in spite of both China and Russia saying that they would intervene if the US attacked first and this intervention would almost certainly be militarily. Ponder that for a moment.
Trump is clearly mentally incapable of the duties of thePresidency and is too dangerous to be allowed to be ”doing what has to be done.” Meanwhile, Trump is planning to attend a Golf Trophy Ceremony while at the same time sending horrible tweets to the Mayor of San Juan who had the courage to tell Trump that her people have no houses to live in, potable water to drink, electric power to communicate and fuel to run trucks and cars (and generators) from the recent hurricane. She said that her people are dying and that the US and Trump are killing them by their inefficiency and bureaucracy. The ghost writer of Trump’s “Art of the Deal” says that he is “deeply disturbed” and utterly “untrustworthy”. Add to that - belligerent, thin-skinned, unable to apologize for anything, a sexual predator, anti-science and a climate denier. But these pale against his threatening nuclear war.
Congress should create a commission to examine if the 25thamendment should be invoked to replace Trump with the Vice President, Mike Pence, who is a religious nut case and a disciple of the Republican mantra of tax cuts for the wealthy and repeal of Obama Care, but not crazy enough to attack North Korea and use nuclear weapons.
I urge the Congress to do this as soon as possible and hopefullyprevent a third world war.
Friday, September 22, 2017
The Power Emergency in Puerto Rico - an Idea
The Class 4 -5 Hurricane Maria has apparently cut off all electronic communication with the outside world. There is only a single cell phone service and this is very fragile. The Governor has warned people not to expect restoration of the island’s electric grid possibly for several months. Puerto Rico’s electric grid is 44 years old and the only power company, the Puerto Rico Electric Power Authority (PREPA), has recently declared bankruptcy and for some time has prevented or limited the development of solar power in the island, even though Puerto Rico is a tropical island and has more than 10-fold the extent of sunlight as, e.g. Miami, ignoring cloud cover.
I have a suggestion that may speed up the restoration of power to the island and also at the same time act as a model system for the use of solar power in a new type of decentralized electric grid in general. I suggest that solar power should be installed on or adjacent to every house and business together with appropriate Tesla-like storage batteries. Of course, reconstruction of the structures is required before the solar panels can be situated. So, this is definitely a non-trivial exercise, but the reconstruction of houses and businesses (and the grid) must proceed in any case. Of course a grid expert must be involved in devising a novel type of “micro-grid” that would of allow total decentralization as well as installation of devices at each set of panels for easily removing the panels from the grid. The benefit of this proposal is that electric power will be restored much more rapidly than simply replicating the old electric grid system and relying on centralized fossil fuel generation of power. And the most important benefit is that this will be a test of the possibility of decentralization that could be used in other island disasters or even in mainland cities after extreme destruction, natural or man-made. One possible man-made disaster could be EMP pulses created by explosion of nuclear weapons in the atmosphere.
I just discovered that there is now a possible commercial solution (Novagen) to the problem of installation of solar power in sites as exist now in Puerto Rico.
I just discovered that there is now a possible commercial solution (Novagen) to the problem of installation of solar power in sites as exist now in Puerto Rico.
Rapid Roll "I" - Under Development (http://www.renovagen.com/prod ucts/rapid-roll-i/)(http:// www.renovagen.com/products/ rapid-roll-t/)
The integration of the Rapid Roll technology into a side-opening ISO shipping container, combined with inverters and a larger battery bank, creates an easily transportable self-sufficient solar power system capable of generating 10 times more power than competitive products. Deploying a huge solar array measuring 5 metres (20 ft ISO) or 10 metres (40 ft ISO) in width and up to 200 metres in length, this represents by far the largest containerized deployable solar array yet conceived. At this scale a multi-MW solar power plant could be deployed in a matter of hours – city-scale power sufficient for a large mining site or military main operating base.
Renovagen envisages that this technology could revolutionize the cost-effective and environmentally-friendly provision of large amounts of off-grid power in remote locations across many industries – including military, disaster relief, mining, oil & gas, construction, events and telecommunications. Indeed it has the potential to save lives by – for example, reducing or eliminating the need for military fuel convoys or by powering medical facilities in disaster zones.
An ISO container form factor utilizes existing transportation and container-handling infrastructure, but it may be sufficiently light-weight to be air-lifted by transport aircraft or heavy-lift helicopter. By integrating more efficient solar cells in the future, systems of up to 600kWp may become possible – for the first time mobilizing truly industrial scale solar power.
Rapid Roll "T"
The Rapid Roll “T” trailer/tactical version provides an extremely mobile solution
which can be airlifted by a wide range of medium and heavy-lift helicopters
(gross weight from 1,500 kg) but packs enough power for energy intensive
operations. Easily mounted on an on-road or off-road trailer or flat-bed truck,
the Rapid Roll “T” provides many options for deployment to practically any
global location imaginable. With simple deployment in just a few minutes
without needing solar engineers onsite, it provides a practical solution for
humanitarian and disaster relief, military, mining, events, film production and
other temporary power-hungry operations in remote places which require
equipment mobility. The size and weight of the Rapid Roll “T” when trailerised (2,000kg – 3,000kg total trailer weight) also makes it easy to tow with standard 4×4 vehicles and it fits on a number of commercial air freight pallets or 463L military pallet and also becomes extremely easy to transport internationally very quickly. Easy handling is facilitated with bi-directional forklift pockets and lifting rings.
Sunday, September 3, 2017
The Dossier(s)?
The Dossier(s)?
The prison bars are slowly closing around Trump. I hope
fast enough to prevent a war with North Korea. Following are two recent
articles about the infamous dossier, including the salacious portion. I myself have been closely following the
dossier investigation. One nice thing about the dossier is that in the published
version someone used a yellow highlighter to emphasize the best parts (Perhaps
the use of a yellow highlighter is an “in joke”). Although it is possibly
leaning towards a type of “schadenfreude”
(Translation: “the experience of pleasure, joy, or self-satisfaction that comes
from learning of or witnessing the troubles, failures, or humiliation of another”)
but I just can’t help it with this numbnut (Translation: The stupidest of the
stupid. A complete dumbass, one whose intelligence quotient does not surpass
that of the average rock), but I myself have been pushing for more on the
salacious portion of the dossier.
And now for two recent articles about the dossier:
How's THIS for a bombshell?
It comes from BBC World News Correspondent Paul Wood (and was published in THE
SPECTATOR, a weekly UK magazine):
"Steele is not the only source [on the infamous "pee tape]. I heard of Russian "Kompromat" - compromising material- on Trump from two sources months before the Steele Dossier came to light. That might be evidence for Trump's statement that Russian intelligence, as well as the US agencies, are out to get him. There are, though, reports of witnesses in the hotel who corroborate Steel's reporting. These include an American who's said to have seen a row with hotel security over whether the (alleged) hookers would be allowed up to Trump's suite. The dossier's account of hookers in a Moscow hotel room was the subject of gossip among a select group of journalists, politicians, and intelligence people for months before it was published. Now claims are circulating of more tapes showing an even more extreme behavior. Expect these allegations to emerge in due course."
And of
course the following BBC-published report from Paul Wood can't possibly be
retweeted enough times.....
"Former
MI6 agent, Christopher Steele, is not the only source for the claim about
Russian Kompromat on the president-elect. Back in August, a
retired head of an East European intelligence agency told me he had been
informed of its existence by the "head of an East European intelligence
Agency." Later I used an intermediary to pass some questions to
active duty CIA officers dealing with the case file - they would not speak to
me directly. I got
a message back that there was "more than one tape", "audio and video",
on "more than one date", "in more than one place" - in the
Ritz-Carlton in Moscow and also in St. Petersberg - and that the material [in
the Trump tape held by the Kremlin] was "of a sexual nature"."
WOW!
Don’t forget to call your Congressperson and push for impeachment.
Treason alone just won’t do it, but an old-fashioned sex scandal just might.
Friday, June 2, 2017
Recent Major Non-Trump-related Advances in Science
In spite of the emotion and turmoil of my hearing Trump take
the US out of the Paris Climate accord and also the storm of new information
daily about Trump and the Russians ( I personally feel that these leaks are payback
from Trump having insulting the entire
intelligence community), I want to calm myself and write a little about several
recent exciting science discoveries. In spite of having retired and closed my lab in 2014, I
have tried (I admit with some difficulty) to keep up with papers and discussions
in Nature and Science. And I also subscribe to a fascinating magazine for the
educated layman (and retired molecular biologists) called The New Scientist.
Discovery of
gravitational waves.
These are non-electromagnetic waves traveling at the speed
of light produced by the deformation of space-time by massive accelerating gravitational
objects. Einstein had predicted these
in 1916 in his General Theory of
Relativity but it was thought that they were faint to be ever observed. In
1974 however, these waves were indirectly
detected by observing a binary neutron
star system over a 2 year period by radio astronomy. Hulse and Taylor found that
the period of rotation was decreasing exactly as predicted by Einstein’s theory
if gravitational waves were being radiated.
To
actually detect gravitational waves requires an instrument that can measure a
movement of 10-19 meters (a distance of 1/10,000 of a proton)! The
best way to measure small distances is still to
use interferometry, as used by Michelson in 1880
to show that the speed of light was constant in any direction and
therefore a hypothetical medium in which light moved called the “ether” did not exist. This led directly to Einstein’s relativity theories.
To detect gravitational waves required a
series of truly incredible engineering advances: production of an extremely
powerful and stable 200 watt laser, seismic isolation systems that sense ground
movements and make corrections, passive movement damping system involving
pendulums supporting the 40 kg mirrors, production of extremely high quality
vacuums in the two L-shaped 2.5 mile long tunnels in both the Hanford and Livingston
sites, and finally a network of supercomputers to process and archive the terabytes
of data produced every day. The project initiated in 1990 and was upgraded in 2010.
The first detection of gravitational waves at both sites occurred in 2015, just
a few days after the installation of upgraded detectors.
And suddenly there was a new window on the universe not
based on electromagnetic waves! To date there have been three separate
observations of gravitational waves.
In order to clear my head of Trump nonsense, I plan to discuss several additional major advances in
science in upcoming blogs. These include:
1.
Entanglement.
2.
Dark matter
3.
Dark energy
4.
The multiverse and the quantum universe.
5.
Growth of brain organoids from stem cells.
6.
The role of micro RNAs in gene regulation
7.
Development of the CRISPR/Cas gene editing
system
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I have a suggestion for the siting of a large solar power plant in the Mojave desert: Use the Owens Lake bed, which is a 200 sq mile dry lak...
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I copy below an article written by Matthew Chapman after the most recent American massacre. I agree with everything he says. "As s...
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As I have said before, the Republican Right has a policy of denying human-caused climate warming and even calling it a "hoax". The...
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