Welcome to those interested in Science!
The effects of Global Warming are so simple. Adding more heat to the atmosphere, the oceans, and land is increasing the energy in the environment. And with more energy the environment releases more as it tries to reach a new stable equilibrium. More storms and worse storms are now in our future for decades if not centuries to come. We'll all have to pay for our stupidity!
Global Warming Is A Fact! Climate Change Is A Fact!
Burning Fossil Fuels Is The Major Cause Of Global Warming!
Only 24 of 13,950 peer-reviewed climate articles reject climate change!
That's only 0.17 percent! Where would you place your bet?
9 Links to Sioux Falls Scientists Latest Website Pages:
2-5-18 Wikipedia has become a science reference source even though scientists don’t cite it
Phrases from Wikipedia pages on hot scientific fields end up in published papers, a study finds. Wikipedia: The settler of dinnertime disputes and the savior of those who cheat on trivia night. Quick, what country has the Nile’s headwaters? What year did Gershwin write “Rhapsody in Blue”? Wikipedia has the answer to all your burning trivia questions — including ones about science. With hundreds of thousands of scientific entries, Wikipedia offers a quick reference for the molecular formula of Zoloft, who the inventor of the 3-D printer is and the fact that the theory of plate tectonics is only about 100 years old. The website is a gold mine for science fans, science bloggers and scientists alike. But even though scientists use Wikipedia, they don’t tend to admit it. The site rarely ends up in a paper’s citations as the source of, say, the history of the gut-brain axis or the chemical formula for polyvinyl chloride. But scientists are browsing Wikipedia just like everyone else. A recent analysis found that Wikipedia stays up-to-date on the latest research — and vocabulary from those Wikipedia articles finds its way into scientific papers. The results don’t just reveal the Wiki-habits of the ivory tower. They also show that the free, widely available information source is playing a role in research progress, especially in poorer countries.
12-25-17 Eight amazing science stories of 2017
It was a year of endings and beginnings: the plucky Cassini spacecraft's 13-year-long mission reached its finale, while the fledgling field of gravitational wave astronomy bagged the catastrophic collision of two dead stars. BBC News looks back on eight of the biggest science and environment stories of 2017.
- Star crash: In 2017, scientists detected Einstein's gravitational waves from a new source - the collision of two dead stars, or neutron stars.
- Cassini's final bow: The Cassini spacecraft arrived in the Saturn system in 2004. In the 13 years it was operational it transformed our understanding of the ringed planet and its moons.
- Paris pull-out: While he was on the campaign trail, Donald Trump said he would "cancel" the Paris climate agreement, taking the US out of the deal. But after winning the US election in November of that year, he made few public pronouncements on the topic of climate change.
- Multiple "Earths": But this year, astronomers discovered a planetary system with seven Earth-sized planets. What's more, these worlds seem to be locked in a strange "resonance" as they orbit their host star.
- Recent relative: In July, researchers unveiled fossils of five early humans found in North Africa that showed our species - Homo sapiens - emerged at least 100,000 years earlier than previously recognised. The finds suggested that our species did not evolve in a single "cradle" in East Africa.
- Dark skies: On 21 August, a giant shadow cast by the Moon swept across America, marking the first total solar eclipse since the country's founding in 1776 where totality made exclusive landfall in the US.
- Visitor from beyond: Though scientists had been predicting for years that we would be visited by an asteroid from interstellar space, 2017 was the first time we spotted one.
- Giant iceberg: One of the biggest icebergs ever recorded broke away from Antarctica's Larsen C ice shelf in July.
12-13-17 Is there a limit to what science can understand?
Maybe science can't answer all the complex questions. Where does that leave us? Albert Einstein said that the "most incomprehensible thing about the Universe is that it is comprehensible." He was right to be astonished. Human brains evolved to be adaptable, but our underlying neural architecture has barely changed since our ancestors roamed the savannah and coped with the challenges that life on it presented. It's surely remarkable that these brains have allowed us to make sense of the quantum and the cosmos, notions far removed from the "commonsense" everyday world in which we evolved. But I think science will hit the buffers at some point. There are two reasons why this might happen. The optimistic one is that we clean up and codify certain areas (such as atomic physics) to the point that there's no more to say. A second, more worrying possibility is that we'll reach the limits of what our brains can grasp. There might be concepts, crucial to a full understanding of physical reality, that we aren't aware of, any more than a monkey comprehends Darwinism or meteorology. Some insights might have to await a post-human intelligence. (Webmaster's comment: I've been saying the same thing for a long time. You could teach chimps how to drive a car but they'll never understand how to fix the engine. Humans are smarter than chimps, and they understand how to use many of the physical laws of the universe, but not why those laws are what they are and what's behind them. Human intelligence has its limits.)
11-13-17 Bad news: Carbon emissions have suddenly started rising again
Emissions of carbon dioxide from fossil fuel are on the rise again. We desperately need more action to stop climate change, and that means putting a price on carbon. If the world does not do more to limit greenhouse gas emissions soon, the final slender hope of preventing global temperature rise being much above 2°C will slip away. Carbon dioxide emissions from fossil fuels and industry are set to rise sharply this year, after remaining stable for the past three years. “This is really not good news,” says Corinne Le Quéré, director of the Tyndall Centre for Climate Change Research in the UK, who led the research by the Global Carbon Project. The findings are yet more evidence that, despite the 2015 Paris agreement, the world is still not doing nearly enough to limit emissions. Yet there is wide agreement on what needs to be done: introducing a meaningful price on carbon. “We need to cost the negative effects of carbon into the activities that produce it,” says Le Quéré. “A carbon price is absolutely essential,” economist Nicholas Stern told a meeting in London organised by the Task Force on Climate-related Financial Disclosures earlier this month. “We may be on a path to 3°C. The risks are enormous.” The biggest global obstacle to investment in clean growth is governments’ failure to pursue clear, credible and predictable policies, Stern said. A well-designed carbon price is an indispensable part of any strategy for efficiently reducing emissions. The European Union does have a carbon trading scheme, but it has produced a low and erratic carbon price – which doesn’t incentivise cutting emissions. The scheme has been close to meaningless, says Wendel Trio of Climate Action Network Europe. Reforms announced last week won’t change this. “What businesses want to know is that the price of carbon is going to be high, and that the price will increase,” says Le Quéré. Le Quéré’s team previously found that, from 2014 to 2016, emissions from fossil fuels and industry remained flat despite continuing economic growth. This led some to hope that global emissions had peaked, although many experts warned it was too early to tell. Now fossil fuel and industry emissions are projected to rise 2 per cent in 2017, to a record 37 gigatonnes of carbon dioxide. Whether emissions will continue to rise in the coming years or flatten out again is not clear, says Le Quéré. “We can’t say what trajectory is going to be realised.”
11-3-17 Humans are driving climate change, federal scientists say
New U.S. report tallies impacts from hottest-ever years to extreme weather threats. Jakobshavn Glacier in western Greenland (its front edge, where ice is calving into the ocean is one of the world’s fastest-shrinking glaciers. A new U.S. report increases projections of average global sea level rise due to accelerating ice sheet melting if greenhouse gas emissions continue unabated. It is “extremely likely” that humans are driving warming on Earth since the 1950s. That statement — which indicates a 95 to 100 percent confidence in the finding — came in a report released November 3 by the U.S. Global Change Research Program. This interagency effort was established in 1989 by presidential initiative to help inform national science policy. The 2017 Climate Science Special Report, which lays out the current state of scientific knowledge on climate change, will be rolled into the fourth National Climate Assessment, set to be released in late 2018. The last national climate assessment, released in 2014, also concluded that recent warming was mostly due to humans, but didn’t give a confidence level (SN Online: 5/6/14). Things haven’t gotten better. Ice sheet melting has accelerated, the 2017 report finds. As a result, projections of possible average global sea level rise by 2100 under a high greenhouse gas emissions scenario (in which emissions rise unabated throughout the 21st century) have increased from 2 meters to as much as 2.6 meters. In addition, the report notes that three of the warmest years on record — 2014, 2015 and 2016 — occurred since the last report was released; those years also had record-low sea ice extent in the Arctic Ocean in the summer.
See the Global Temperature History Charts
See the Global Ice Loss Charts
10-30-17 Record surge in atmospheric CO2 seen in 2016
Concentrations of CO2 in the Earth's atmosphere surged to a record high in 2016, according to the World Meteorological Organization (WMO). Last year's increase was 50% higher than the average of the past 10 years. Researchers say a combination of human activities and the El Niño weather phenomenon drove CO2 to a level not seen in 800,000 years. Scientists say this risks making global temperature targets largely unattainable. his year's greenhouse gas bulletin produced by the WMO, is based on measurements taken in 51 countries. Research stations dotted around the globe measure concentrations of warming gases including carbon dioxide, methane and nitrous oxide. The figures published by the WMO are what's left in the atmosphere after significant amounts are absorbed by the Earth's "sinks", which include the oceans and the biosphere. 2016 saw average concentrations of CO2 hit 403.3 parts per million, up from 400ppm in 2015. "It is the largest increase we have ever seen in the 30 years we have had this network," Dr Oksana Tarasova, chief of WMO's global atmosphere watch programme, told BBC News. "The largest increase was in the previous El Niño, in 1997-1998 and it was 2.7ppm and now it is 3.3ppm, it is also 50% higher than the average of the last ten years."
Sioux Falls Scientists is a group made up of people who love science as well as those interested in science, and scientists themselves. This website provides news articles, documentaries, courses and books that describe how science works and the latest discoveries of science, especially the latest discoveries in the fields of global warming and evolution science. Located in Sioux Falls, SD, the Sioux Falls Scientists have meetings and social gatherings where people of free thought and open minds meet and share ideas, share what they have learned about science and share what they think about the latest science discoveries.
To become a member of this group join
Sioux Falls Free Thinkers on Meetup.com
Our meetings and social gatherings are posted at Sioux Falls Free Thinkers on Meetup.com. Sioux Falls Free Thinkers Upcoming Events can be seen on the Meetup.com Calendar.
The Sioux Falls Scientists group will never have any dues. Membership is not required to attend our meetings. This group will probably never have any formal rules except treating other members and their opinions with respect and giving everyone equal time to speak. This group will never purge members for expressing their opinions or for forming their own group of people interested in science in general or in a particular field of scientific study. The only loose requirement is that members, and those attending our meetings, have an interest in one of the subjects of the Sioux Falls Free Thinkers websites.
We look forward to seeing you at one or more of our events and meetings!
Life Changing Event: Trilobites: When I was in 5th or 6th grade I found a 400 million-year-old fossil of a Trilobite in a 10-12 inch limestone rock in a gravel pit near the home I in lived in the country. I brought it into school and asked the science teacher whether or not it might contain more fossils. The IDIOT took it from me and using a hammer broke the rock in half right through the fossil ruining it. I realized then that I knew more about science than did the science teacher.
The Chinese Take The Lead Again!
8-23-17 First underwater entanglement could lead to unhackable comms
First underwater entanglement could lead to unhackable comms
A Chinese experiment suggests submarines could use quantum communication to send messages secured by the laws of physics. The weird world of quantum mechanics is going for a swim. A team of Chinese researchers has, for the first time, transmitted quantum entangled particles of light through water – the first step in using lasers to send underwater messages that are impossible to intercept. “People have talked about the idea of underwater quantum communication before, but I’m not aware of anyone who has done an experiment like this,” says Thomas Jennewein at the University of Waterloo in Canada. “An obvious application would be a submarine which wants to remain submerged but communicate in a secure fashion.” Entanglement starts with a beam of light shot into a crystal. This prism splits the light into pairs of photons with strangely linked behaviour. Manipulate one particle in a pair, and its partner will instantly react. Measure the first one’s polarisation, for example, and entanglement could ensure that its twin will have the opposite polarisation when measured. These entangled photons can theoretically be used to set up a secure communication line between two people, with privacy guaranteed by the laws of physics.
8-22-17 China’s quantum submarine detector could seal South China Sea
China’s quantum submarine detector could seal South China Sea
A major advance in SQUIDs, quantum devices that measure magnetic fields, could allow China to detect submarines at longer range than anyone else. On 21 June, the Chinese Academy of Sciences hailed a breakthrough – a major upgrade to a kind of quantum device that measures magnetic fields. The announcement vanished after a journalist pointed out the invention’s potential military implications: it could help China lock down the South China Sea. “I was surprised by the removal,” says Stephen Chen of the South China Morning Post, who raised the issue. “I have been covering Chinese science for many years, and it is rare.” Magnetometers have been used to detect submarines since the second world war. They are able to do this because they can measure an anomaly in Earth’s magnetic field – like one caused by a massive hunk of metal. But today’s devices can only detect a submarine at fairly short range, so tend to be used to home in on the location once the sub has already been spotted on sonar. You could widen their range if you had a magnetometer based on a superconducting quantum interference device, or SQUID. Superconducting magnetometers are exquisitely sensitive, but their promise has been limited to the lab. Out in the real world, they are quickly overwhelmed by background noise as minuscule as changes in Earth’s magnetic field caused by distant solar storms. Given that level of sensitivity, you can forget about mounting such a sensor on an airplane, for example. The US Navy gave up work on superconducting magnetometers to pursue less sensitive but more mature technologies. (Webmaster's comment: In other words the United States couldn't do it.)
8-10-17 Chinese satellite sends 'hack-proof' message
Chinese satellite sends 'hack-proof' message
China has successfully sent "hack-proof" messages from a satellite to Earth for the first time. The Micius satellite beamed messages to two mountain-top receiving stations 645 km (400 miles) and 1,200 km away. The message was protected by exploiting quantum physics, which says any attempt to eavesdrop on it would make detectable changes. Using satellites avoids some limitations that ground-based systems introduce into quantum communication. Complicated optics on the Chinese satellite protect messages with entangled photons - sub-atomic particles of light manipulated so that some of their key properties are dependent on each other. The curious laws of the quantum realm dictate that any attempt to measure these key properties irrevocably changes them. By encoding a key to encrypt data using entangled photons, it becomes possible to send messages confident that they have reached a recipient free of interference. Ground-based encryption systems that use entangled photons have been available for years. However, the maximum distance over which messages can be sent securely is about 200km. This is because the fibre-optic cables through which they travel gradually weaken the signals. Repeater stations can boost distances but that introduces weak points that attackers may target to scoop up messages. By contrast, laser signals sent through the atmosphere or via satellites in space can travel much further before being weakened. (Webmaster's comment: The Chinese increase their lead in this cutting-edge technology.)
7-7-17 China’s quantum satellite adds two new tricks to its repertoire
China’s quantum satellite adds two new tricks to its repertoire
Era of ultrasecure communication inches closer. China’s quantum satellite has met two more milestones, performing quantum teleportation and transmitting quantum encryption keys through space. Scientists teleported the properties of photons, or particles of light, from a ground station in Tibet to the satellite. A record-breaking quantum satellite has again blown away the competition, achieving two new milestones in long-distance quantum communications through space. In June, Chinese researchers demonstrated that the satellite Micius could send entangled quantum particles to far-flung locations on Earth, their properties remaining intertwined despite being separated by more than 1,200 kilometers (SN Online: 6/15/17). Now researchers have used the satellite to teleport particles’ properties and transmit quantum encryption keys. The result, reported in two papers published online July 3 and July 4 at arXiv.org, marks the first time the two techniques have been demonstrated in space. (Webmaster's comment: The Chinese have taken a clear lead in this cutting edge technology. In response Trump has cut our science budget.)
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Welcome to those interested in Science!.