Crystalline

Looking for all the world like a snowflake, this is actually a close up view of sodium chloride crystals. The crystals are in a water bubble within a 50-millimeter metal loop that was part of an experiment in the Destiny laboratory aboard the International Space Station and was photographed by the Expedition 6 crew.

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Doubt on Power, Torque and RPM

Sir,

I have small doubt on Power and torque. What is the practical relation.I know power =torque X Omega. But when vehicl climbing up why we need more torque and As r.p.m increases,The torque increases up to certain value and then decreases??? how we can substantiate this statement and why clut

As The Crust Turns: Cassini Data Show Enceladus in Motion

Enceladus
Blobs of warm ice that periodically rise to the surface and churn the icy crust on Saturn's moon Enceladus explain the quirky heat behavior and intriguing surface of the moon's south polar region, according to a new paper using data from NASA's Cassini spacecraft.

"Cassini appears to have caught Enceladus in the middle of a burp," said Francis Nimmo, a planetary scientist at the University of California Santa Cruz and a co-author of the new paper in Nature Geoscience. "These tumultuous periods are rare and Cassini happens to have been watching the moon during one of these special epochs."

The south polar region captivates scientists because it hosts the fissures known as "tiger stripes" that spray water vapor and other particles out from the moon. While the latest paper, released on Jan. 10, doesn't link the churning and resurfacing directly to the formation of fissures and jets, it does fill in some of the blanks in the region's history.

"This episodic model helps to solve one of the most perplexing mysteries of Enceladus," said Bob Pappalardo, Cassini project scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif., of the research done by his colleagues. "Why is the south polar surface so young? How could this amount of heat be pumped out at the moon's south pole? This idea assembles the pieces of the puzzle."

About four years ago, Cassini's composite infrared spectrometer instrument detected a heat flow in the south polar region of at least 6 gigawatts, the equivalent of at least a dozen electric power plants. This is at least three times as much heat as an average region of Earth of similar area would produce, despite Enceladus' small size. The region was also later found by Cassini's ion and neutral mass spectrometer instrument to be swiftly expelling argon, which comes from rocks decaying radioactively and has a well-known rate of decay.

Melted Ice

Calculations told scientists it would be impossible for Enceladus to have continually produced heat and gas at this rate. Tidal movement – the pull and push from Saturn as Enceladus moves around the planet – cannot explain the release of so much energy.

The surface ages of different regions of Enceladus also show great diversity. Heavily cratered plains in the northern part of the moon appear to be as old as 4.2 billion years, while a region near the equator known as Sarandib Planitia is between 170 million and 3.7 billion years old. The south polar area, however, appears to be less than 100 million years old, possibly as young as 500,000 years.

Craig O'Neill of Macquarie University in Sydney, Australia, and Nimmo, who was partially funded by the NASA Outer Planets Research program, adapted a model that O'Neill had developed for the convection of Earth's crust. For Enceladus, which has a surface completely covered in cold ice that is fractured by the tug of Saturn's gravitational pull, the scientists stiffened up the crust. They picked a strength somewhere between that of the malleable tectonic plates on Earth and the rigid plates of Venus, which are so strong, it appears they never get sucked down into the interior.

Their model showed that heat building up from the interior of Enceladus could be released in episodic bubbles of warm, light ice rising to the surface, akin to the rising blobs of heated wax in a lava lamp. The rise of the warm bubbles would send cold, heavier ice down into the interior. (Warm is, of course, relative. Nimmo said the bubbles are probably just below freezing, which is 273 degrees Kelvin or 32 degrees Farenheit, whereas the surface is a frigid 80 degrees Kelvin or -316 degrees Farenheit.)

The model fits the activity on Enceladus when the churning and resurfacing periods are assumed to last about 10 million years, and the quiet periods, when the surface ice is undisturbed, last about 100 million to two billion years. Their model suggests the active periods have occurred only 1 to 10 percent of the time that Enceladus has existed and have recycled 10 to 40 percent of the surface. The active area around Enceladus's south pole is about 10 percent of its surface.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. JPL, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate in Washington. The Cassini orbiter was designed, developed and assembled at JPL.

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NASA to Check for Unlikely Winter Survival of Mars Lander

Phoenix Lander amid disappearing spring ice
Beginning Jan. 18, NASA's Mars Odyssey orbiter will listen for possible, though improbable, radio transmissions from the Phoenix Mars Lander, which completed five months of studying an arctic Martian site in November 2008.

The solar-powered lander operated two months longer than its three-month prime mission during summer on northern Mars before the seasonal ebb of sunshine ended its work. Since then, Phoenix's landing site has gone through autumn, winter and part of spring. The lander's hardware was not designed to survive the temperature extremes and ice-coating load of an arctic Martian winter.

In the extremely unlikely case that Phoenix survived the winter, it is expected to follow instructions programmed on its computer. If systems still operate, once its solar panels generate enough electricity to establish a positive energy balance, the lander would periodically try to communicate with any available Mars relay orbiters in an attempt to reestablish contact with Earth. During each communications attempt, the lander would alternately use each of its two radios and each of its two antennas.

Odyssey will pass over the Phoenix landing site approximately 10 times each day during three consecutive days of listening this month and two longer listening campaigns in February and March.

"We do not expect Phoenix to have survived, and therefore do not expect to hear from it. However, if Phoenix is transmitting, Odyssey will hear it," said Chad Edwards, chief telecommunications engineer for the Mars Exploration Program at NASA's Jet Propulsion Laboratory, Pasadena, Calif. "We will perform a sufficient number of Odyssey contact attempts that if we don't detect a transmission from Phoenix, we can have a high degree of confidence that the lander is not active."

The amount of sunshine at Phoenix's site is currently about the same as when the lander last communicated, on Nov. 2, 2008, with the sun above the horizon about 17 hours each day. The listening attempts will continue until after the sun is above the horizon for the full 24.7 hours of the Martian day at the lander's high-latitude site. During the later attempts in February or March, Odyssey will transmit radio signals that could potentially be heard by Phoenix, as well as passively listening.

If Odyssey does hear from Phoenix, the orbiter will attempt to lock onto the signal and gain information about the lander's status. The initial task would be to determine what capabilities Phoenix retains, information that NASA would consider in decisions about any further steps.

Mars Odyssey is managed for NASA's Science Mission Directorate by JPL, a division of the California Institute of Technology in Pasadena. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft.

The successful Phoenix mission was led by Peter Smith of the University of Arizona, Tucson, with project management at JPL and development partnership at Lockheed Martin. International contributions came from the Canadian Space Agency; the University of Neuchatel, Switzerland; the universities of Copenhagen and Aarhus in Denmark; the Max Planck Institute in Germany; the Finnish Meteorological Institute; and Imperial College, London.

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The Water Cure: Another Example of Self Deception and the “Lone Genius”

A correspondent wrote:

I hear all day long on my local radio station commercials for The Water Cure, which was created by a Dr. Batmangelli (I have no idea how to spell his name) promising wonderful cures by eliminating caffeine and alcohol and drinking water and sprinkling sea salt on your food. If you REALLY want to get cured even faster, swim in the ocean everyday.

That’s Dr. Fereydoon Batmanghelidj. His Big Idea was that dehydration is the main cause of disease. It was untenable to begin with, is supported by no evidence, was debunked on Quackwatch several years ago, and Dr. Batmanghelidj died in 2004, so I was surprised to hear it was still being vigorously promoted. But not very surprised. After all, homeopathy is still around.

The Water Cure is another in a long list of alleged miracle cures discovered by “lone geniuses” who are allegedly persecuted by a resistant medical establishment. These stories follow a pattern, and I think it is worthwhile looking at this prime example to understand something of the psychology of self-deception that is involved.

How It All Started

Dr. Batmanghelidj was imprisoned for political crimes in Tehran’s infamous Evin prison. A number of his fellow prisoners had previously been diagnosed with peptic ulcer disease (PUD). Their symptoms recurred in jail and didn’t respond to Cimetidine and antacids. Dr. Batmanghelidj gave a prisoner with unbearable pain two glasses of water. The pain disappeared completely after 8 minutes.

He treated other PUD patients with remarkable success. One patient was semiconscious from pain but after drinking water he recovered in 20 minutes. (One wonders about the wisdom of making a semiconscious patient drink, since there is a risk of aspiration). Patients were advised to continue drinking 1500cc of water daily for 6 weeks, allowing time for the average ulcer to heal. Symptoms did not recur.

During treatment, urine volume increased and patients had to get up at night to pee. Dr. Batmanghelidj assumed this meant that they were losing sodium so he added salt to their treatment regimen.

It seems logical that drinking water would dilute the stomach acid and provide some temporary relief. In a majority of patients the relief of pain was preceded by eructation of gas. Hmmm… For some reason, Batmanghelidj decided that the real problem was dehydration: dehydration was the sole cause of pain so the pain was relieved by drinking water.

Dr. Batmanghelidj eventually got out of prison and came to the US, where he developed his ideas further and wrote a series of books. His philosophy expanded. Although water alone had worked for his initial patients, he added salt (without any comparison studies to show it improved outcome) and then declared that it should be sea salt to supply trace minerals (again with no comparison studies). He recommends Himalayan or Celtic sea salt (!?) Rather than adding salt to your food or water, you should let it dissolve on your tongue (Why?). If you are urinating within 2 hours of drinking water, you should eat bagels to help keep the water in your body long enough for it to work. This is referred to as “Bagel Magic.”

He spoke out against alcohol, caffeine, and anything else that might contribute to dehydration. He expanded his thinking to include acidity and immunology:

the causes of most so-called incurable diseases are nothing but symptoms of a weak immune system caused by consuming caffeine, alcohol and/or soda and lack of water and/or salt. They create an acid pH and the more acidic it is, the weaker your immune system, the worse your health becomes and the more difficult it is for your body to repair itself.

He claims the water cure will:

  1. Prevent and reverse premature aging
  2. Eliminate pain, including heartburn, back pain, arthritis, colitis, angina, and migraine headaches
  3. Cure asthma in a few days, naturally and forever
  4. Cure hypertension without diuretics or other medications
  5. Lose weight effortlessly and naturally, without strict dieting

He suggests that water is a no-cost solution to heart disease. But that’s not all! His websites include testimonials from patients who were allegedly cured of:

Terminal Cancer – Diabetes – Herniated Discs – Chronic Pain – Depression – Fibromyalgia – Suicidal Tendencies – Edema – Acid Reflux – Watering Eyes – Hiccups – Pet Arthritis – Asthma – Syncope – Migraines – Chronic Fatigue – Bronchitis – Vision – Raccoon Eyes – Energy – Skin Ailments – Dizziness – Allergies – Diabetes – Eye Edema – Herpies [sic] – Weight Loss – Leukemia

Where’s the Evidence?

The Water Cure website provides a list of scientific documents. Most of them are opinion pieces written by Batmanghelidj himself in a journal he established himself and self-published for three years (Science in Medicine Simplified) because he couldn’t get published in reputable journals.

Batmanghelidj claims to have done a lot of research, but he hasn’t. All he has done is theorize and speculate. He has only two listings in PubMed for articles published in peer-reviewed journals.

The first was published in 1983 in The Journal of Clinical Gastroenterology. It is not a scientific study, but an “editorial” that describes his experiences with patients in the prison. It is an anecdotal account that doesn’t even rise to the level of case reports or case series. He says he treated 3000 patients with PUD, and his account suggests that about a third of all prisoners had PUD, which seems a bit high even considering the stress of prison. These diagnoses were clinical diagnoses: in other words, completely unreliable. It is impossible to differentiate peptic ulcers from non-ulcer dyspepsia or other conditions without an endoscopy or an imaging procedure. He says he also successfully treated a few cases of “appendix pain” (whatever that means) and from that he concludes that “a site of pain other than epigastric may herald a clinical picture of duodenal ulcer disease.” This leaves me at a loss for words.

The second article, published in Anticancer Research in 1987, is a speculative rumination calling for a paradigm change in thinking about pain. It claims that pain is a signal system denoting free water deficiency of the cell. It is poorly written and doesn’t make sense to me. For instance, he says that this new paradigm does not apply to conditions with local tissue pathology, like cholecystitis. But peptic ulcers are local tissue pathology. Why should the water cure work for ulcers but not for cholecystitis? Bizarrely, he ends his article with an acknowledgement thanking the Almighty for his light and fine detailed guidance.

Batmanghelidj’s Other Weird Ideas

In an interview with Mike Adams he made a series of very questionable statements:

“thirst in the body can manifest itself in the form of abdominal pain to the level that the person can even become semi-conscious.”

“water shortage is actually the background to most of the health problems in our society.”

He claims that histamine regulates the water in the body and that antidepressant drugs are antihistamines, pain medications are antihistamines, and other medications are directly and indirectly antihistamines.

“the whole entire existence of the pharmaceutical industry is based on presentation of false science”

“we measure the level of cholesterol in the body in the blood we take out of the veins of the body, and nowhere in the history of medicine is there recorded one single case of cholesterol ever having blocked the veins of the body.”

“a lot of children who drink soft drinks actually become ‘stupid’, but once you take the soft drink away from them, their grades improve tremendously — C’s and F’s become A’s and B’s.”

This kind of thing is bad enough, but he really loses it when he descends into AIDS denialism:

… everyone assumes that AIDS is actually a viral disease, which is a fraudulent statement by those people who presented it, because the human body is the product of many, many years of having fought various viral diseases, and has survived. Smallpox, polio, measles, and all the other viruses that can kill very easily, and the body has an ability to mount a defense system against these hot viruses, viruses that actually very quickly can kill. But having survived those, how is it possible that the slow virus would kill us in the name of AIDS? I can’t understand it.

I have researched this topic extensively, and I have shown in fact that AIDS is a metabolic problem, when the body begins to cannibalize its own tissue because of certain missing elements in the raw materials that it receives through food or beverages, and the body of a person who gets AIDS, actually, is short of quite a number of building block amino acids. They’re short of tyrosine, they’re short of methionine, cysteine, they’re short of histidine, and they’ve got a whole lot of others in excess. So how can we expect a body that depends on the other amino acids to survive?

Elsewhere he has claimed that water is one of the main sources of energy for the brain and the entire body and that it produces “hydro-electric” energy by splitting into hydrogen and oxygen!

How Do Intelligent People Go Wrong?

Dr. Batmanghelidj follows a well-beaten path. From chiropractic to eye movement desensitization and reprocessing (EMDR), innumerable non-science-based practitioners have gone down this same slippery slope. Here is the typical progression from initial self-deception to “lone genius” woomeister status:

  1. He witnesses an unexpected improvement after a treatment.
  2. He assumes the treatment caused the improvement.
  3. He does not test this assumption or try to rule out other possible explanations.
  4. He proceeds to treat many other patients the same way, with apparent success, and allows confirmation bias to bolster his conviction.
  5. His ego is boosted by grateful patients and by the conviction that he has special knowledge.
  6. He extends the treatment to patients with other diagnoses.
  7. He exercises his imagination and speculates about a possible physiological mechanism by which the treatment might work.
  8. He generalizes, often claiming to have found the “one cause of all disease.”
  9. He tries to convince scientists by describing his anecdotal experiences.
  10. The scientists refuse to accept his untenable explanations or to publish his scientifically unacceptable papers.
  11. He accuses the scientific establishment of persecuting him and suppressing knowledge that would undermine the status quo and help many patients.
  12. He plays the lone genius card, often comparing himself to Galileo or Semmelweis.
  13. He writes books and sells things.

For Batmanghelidj the epiphany was a glass of water that apparently relieved a stomach pain. For D. D. Palmer (chiropractic) it was a back adjustment that apparently restored a deaf janitor’s hearing. For Samuel Hahnemann (homeopathy) it was the supposedly malaria-like symptoms he experienced after taking an anti-malaria drug. For Francine Shapiro (EMDR) it was the observation during a walk in a park that moving her eyes seemed to reduce the stress of disturbing memories. For Edward Bach (Bach Flower Remedies), a walk in the country revealed his intuitive psychic connection to various plants.

The initial error was the same in all cases: they failed to consider the possibility that they might be wrong. They failed to use the scientific method to test their observations. The rest of the sequence followed naturally from human psychology. The Water Cure is nonsense, but its story provides a cautionary tale. The most important thing a scientist can say is “I could be wrong.”


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Conical Roof Tank Design

Dear all mechanical friends,

we have a supported conical roof tank of 7.6mtr. diameter in our factroy. A recent requirement from the process has arised for the addition of 14" flame arrestor on the top nozzle of the tank.

the problem is the flame arrestor being large size (14") and

Obama takes credit, again, for people giving up on looking for a job

by Clifford F. Thies

Somebody has to tell this guy that the unemployment rate not going up when the number of people having jobs goes down is not a good thing.

In the December labor market report, the unemployment rate held steady at 10 percent while the number of Americans having jobs went down by 85,000. There is only one way, mathematically, for this to happen. It is for the labor force participation rate (the number of people working and looking for work, as compared to the number of population over 16) to fall. This rate fell in December, to a 25-year low of 64.6 percent. It fell because more and more people have given up the hope of finding work.

Christina Roma, Chief Shill for the Administration on the Economy, put it this way, “To put this number in perspective, employment declined 139,000 in September and 127,000 in October. So, in a broad sense the trend toward moderating job loss is continuing.”

How does it feel, Christina, to be the spin doctor for an economic disaster?

The end of hope?

As I have been tracking it, consumer and business confidence are at pathetically low levels. According to my monthly meta-survey of something like 100,000 households, consumer confidence fell during 2007 to a very low level, from which – even two years later! - it has hardly recovered. A corresponding meta-survey of business, including small business, supply chain managers, bank loan officers, human resource managers, CFOs and CEOs, gives a very similar picture.

Consumer and business confidence refer to short-run prospects, e.g., one-year or less. In terms of longer-run prospects, a particular question from the monthly survey conducted by the Survey Research Center of the University of Michigan is informative. It asks what kind of business conditions are expected in five years. At the start of the decade, about 60 percent expected good times. Nowadays, about 60 percent expect bad times. In April, 57 percent of respondents to a Rasmussen Poll said they expect the children of today to not be as well off as their parents. My God!

Why should Americans be so despondent?

The problems facing this country are not merely subjective, although fatalistic pessimism is itself a problem. Four major concerns loom like the four horsemen of the apocalypse over the economy.

In terms of higher taxes, we have:

— Expiration of Bush tax cuts

— Higher taxes on “the rich”

— Expiration of various business tax breaks and of the amelioration of the AMT

In terms of the risk of inflation, we have:

— Unsustainable budget deficits, huge debt guarantees and other “off balance sheet” liabilities

— Doubling of the Money Supply

— Early warning signs: Gold, Exchange Rates

In terms of a socialized economy, we have:

— Health care reform and the cutting of Medicare and Medicaid, the “savings” of which will mean some combination of higher private insurance premiums and reduced quality of health care

— Socialization of industry in the name of Climate Change

— TARP and the socialization of credit

In terms of geopolitical uncertainties, we have:

— Afghanistan

— Al Qaida

— Home-grown terrorism

— Radical Islam in Africa and Asia

— Nuclear Iran

These are real problems that require a strong and prosperous economy, as well as inspirational leadership in Washington.

Another stimulus package?

While Ronald Reagan and Margaret Thatcher got the economies of the U.S. and U.K. rejuvenated using tax cuts, deregulation and privatization, this Administration reverts to the old-fashioned Keynesian stimulus of big spending.

But, the patient needs hope, not another shot of adrenalin. Hope that you can profit through hard work and risk-taking. Not a zombified economy of moochers counting on foreigners increasing the credit lines on our charge cards.

The idea that we can spend our way out of the current mess makes as much sense as King Ahab making sacrifices to Ba’al at a time of decline in the history of Israel. We can sacrifice our freedom on the altars of socialism but we will get nothing but ruin in return.

Dr. Thies is a professor of economics at Shenandoah Univ. in Virginia.

New Book on Russolo Published by G. Lista

Luigi Russolo e la musica futurista
by Giovanni Lista
Edizioni Mudima (Milano), 2009
190 pages, 92 images
ISBN: 9788887684544

Luigi Russolo. Painter, performer and theorist of futurist “rumorismo”, he experimented a new kind of music based on noises and on the largest extension of sound materials. Russolo let the music free, refusing any opposition between sound and noise and therefore affirming the deep unity of acoustic phenomena. His theories and concerts, given by intonarumori and Rumorharmonium, marked the beginning of “concrete music”, “sound poetry” and noises performances’ expressive currents. This book analyzes Russolo’s ideas and approach and collects as well his most important theorical essais, together with documents and statements by such people as Luciano Berio, John Cage, Michel Seuphor or Pierre Schaeffer. The reader can understand the historical importance of futurist “rumorismo” and Russolo’s role of special forerunner of the most revolutionary kinds of modern music.

<<>>

Un libro sull’opera di Luigi Russolo è stato appena pubblicato.

Luigi Russolo. Pittore, performer e teorico del “rumorismo” futurista, sperimentò una nuova musica fondata sui rumori e sulla massima estensione della materia sonora. Rifiutando l’opposizione tra suono e rumore, affermando cioè la profonda unità del fenomeno acustico, Russolo ha liberato la musica. Le sue teorie e i suoi concerti, eseguiti con gli intonarumori e il Rumorharmonium, hanno inaugurato la corrente espressiva della “musica concreta”, della “poesia sonora” e della performance rumorista. Questo libro analizza le idee e il percorso di Russolo, raccogliendo anche i suoi più importanti scritti teorici, insieme a documenti e testimonianze, da Luciano Berio a John Cage, da Michel Seuphor a Pierre Schaeffer, sull’importanza storica del rumorismo futurista e sul ruolo di Russolo in quanto illustre precursore delle forme più rivoluzionarie della musica moderna.

Thanks, Giovanni!

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NORTH DAKOTA: Western Conservative John Hoeven announces for US Senate

LR FOLLOW-UP

From Eric Dondero:

We reported here at LR two weeks ago on poll numbers showing North Dakota Governor John Hoeven, way out ahead of incumbent Democrat Byron Dorgan. Of course, Dorgan has since dropped out. Another possible Democrat replacement, current Congressman Earl Pomeroy has opted against a run.

Yesterday, Gov. Hoeven formally announced his intentions to run for the seat. With the enormously popular Hoeven running, this now makes for an almost certain Republican pick-up. (Some pundits tossed out the name of MSNBC host, stridently progressive Ed Schultz who is a North Dakotan, but nothing materialized.)

From NPR Poltical Blog:

Democrats currently are without a candidate. Their seemingly most logical choice, Rep. Earl Pomeroy -- who is elected statewide -- said he would not run.

EXPECTED DEM LOSSES (1): North Dakota (open seat -- Byron Dorgan retiring).

Hoeven is a "Western-style Conservative," who is said to be following in the footsteps of South Dakota's John Thune. (Source: Crookston Times, Nov. 2009). He is staunchly Pro-Gun Rights, Pro-Energy Independence, and of particular interest to libertarians, believes Drug Policy should be handled by the States, and not the Federal government.

Getting More Viral Every Day | The Loom

In tomorrow’s New York Times, I dig up some of the fossil viruses that have been buried in our genome for tens of millions of years.

This is a subject I’ve explored here on the Loom before (1, 2), but now is a great time to stop and take stock of just how much progress scientists have made in exhuming the ancient invaders that helped make us what we are.

There was one dimension of this research that I didn’t have space to describe, but it’s too cool to let go unmentioned. In the article, I describe a virus protein called syncitin that is essential for placentas to develop. Cells push the protein to their surface, where it lets them latch onto other cells, fusing together to create a special layer through which nutrients can pass from mother to child. The protein got its start on viruses, which use it to latch onto host cells and fuse to them, allowing their genes to slip in.

But recent research has revealed an intriguing new twist to our viral legacy. It turns out that the viral surface protein in question has a second job. It also tamps down the immune system of its host. If the protein is altered to make it unable to suppress the immune response, viruses cannot successfully infect their hosts.

Thierry Heidmann, a leading paleovirologist whom I spoke to for the article, suspects that this second function may have been critical in the evolution of the placenta. That’s because there are two major challenges to being a placental mammal. First off, mothers need to be able supply their embryos with lots of nutrition for a long time through their circulatory system. Second, they have to cool down their immune systems. A baby’s tissues would otherwise look to the mother’s immune system like foreign tissue and be quickly rejected. So it’s possible that viruses not only let mothers feed their babies, but not kill them either.

This is a story that’s just going to get cooler, so expect updates as necessary.