Archiv: science


01.11.2019 - 06:33 [ Telegraph.co.uk ]

Sun’s protective ‚bubble‘ is shrinking

(18.10.2008)

The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, Nasa scientists have warned.

25.09.2019 - 19:51 [ Donna Laframboise / nofrakkingconsensus.com ]

3 Things Scientists Need to Know About the IPCC

(01.09.2015)

The bottom line is that this is a week of naked political horse trading that goes on behind closed doors. Journalists are not allowed to witness what takes place, which is why we’ve been looking at official IPCC photos here. This is what they permit us to see.

It’s only after the diplomats have haggled over this Summary – paragraph by paragraph – that the final version gets officially released at a press conference.

The world is then told that science has spoken. But what’s just happened has nothing to do with science. Scientific truth is not determined in the dead of night by UN-level negotiations. On what planet would such an approach make scientific sense?

But the bad news doesn’t stop there. There’s actually a step in the IPCC process in which the original, lengthy report gets amended so that it conforms to the politically-negotiated Summary. I am not making this up.

11.08.2019 - 13:20 [ Donna Laframboise / nofrakkingconsensus.com ]

3 Things Scientists Need to Know About the IPCC

(01.09.2015)

So what’s going on here? How do we explain this outlandish, perverse process?

Well Rajendra Pachauri, who chaired the IPCC for 13 years, said that its “main customer” was something called the UNFCCC. Jean-Pascal van Ypersele is an IPCC official who’s working very hard to become its new chairman. This is slide #26 from a presentation he gave a few years ago: The IPCC, he says, is “eager to continue serving the UNFCCC process.” What does that mean?

The United Nations Framework Convention on Climate Change is an international treaty. If you’re the UN, and you’re trying to persuade nearly 200 different parties to act together, you need to start from somewhere. You need an established body of facts, a master document, a bible that everyone can use as a jumping-off point. IPCC reports, it turns out, serve that purpose.

In other words, the IPCC’s primary function is to enable a political instrument – a treaty between nation states. This is high octane politics.

02.08.2019 - 02:09 [ CNN ]

Bill Nye’s experimental spacecraft that sails on sunlight declares mission success

The Planetary Society spent a decade working up to the LightSail 2 mission and scraping together the $7 million needed to get the project off the ground. All told, 50,000 supporters from 109 countries donated to the initiative, according to Planetary Society COO Jennifer Vaughn.

16.07.2019 - 03:37 [ ABC News ]

Adani demands names of CSIRO scientists reviewing groundwater plans

Adani demanded the names of all federal agency scientists reviewing its contentious groundwater plans so it could check if they were „anti-coal“ activists, emails obtained under freedom of information show.
Key points:

The revelation has alarmed CSIRO staff representatives, who said it indicated Adani had „a deliberate strategy“ to pressure scientists by searching for personal information it could use to try to „discredit their work“.

13.07.2019 - 16:48 [ National Aeronautics and Space Administration ]

Solar Activity Forecast for Next Decade Favorable for Exploration

(12.06.2019)

Previously, researchers used the number of sunspots to represent indirectly the activity of the solar magnetic field. The new approach takes advantage of direct observations of magnetic fields emerging on the surface of the Sun – data which has only existed for the last four solar cycles.

03.05.2019 - 11:56 [ Europäische Organisation für Kernforschung CERN ]

World Wide Web born at CERN 25 years ago

(12.03.2014)

In March 1989 Tim Berners-Lee, a scientist working at CERN, submitted a proposal to develop a radical new way of linking and sharing information over the internet. The document was entitled Information Management: A Proposal. And so the web was born.

The first website at CERN – and in the world – was dedicated to the World Wide Web project itself. Last April CERN initiated a project to restore the first website, and to bring back the spirit of that time through its technical innovation and the founding principles of openness and freedom.

In 1993 CERN put the World Wide Web software in the public domain.

29.04.2019 - 13:21 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

29.04.2019 - 13:15 [ Stanford University ]

ON THE WEAKENING OF THE POLAR MAGNETIC FIELDS DURING SOLAR CYCLE 23

(20. Dezember 2009)

The Sun’s polar fields are currently ∼40% weaker than they were during the previous three sunspot minima. This weakening has been accompanied by a corresponding decrease in the interplanetary magnetic field (IMF) strength, by a ∼20% shrinkage in the polar coronal-hole areas, and by a reduction in the solar-wind mass flux over the poles. It has also been reflected in coronal streamer structure and the heliospheric current sheet, which only showed the expected flattening into the equatorial plane after sunspot numbers fell to unusually low values in mid-2008. From latitude–time plots of the photospheric field, it has long been apparent that the polar fields are formed through the transport of trailing-polarity flux from the sunspot latitudes to the poles.

29.04.2019 - 12:48 [ Nature.com ]

Earth’s magnetic field is acting up and geologists don’t know why

(9. Januar 2019)

The magnetic pole is moving so quickly that it has forced the world’s geomagnetism experts into a rare move.

On 15 January, they are set to update the World Magnetic Model, which describes the planet’s magnetic field and underlies all modern navigation, from the systems that steer ships at sea to Google Maps on smartphones.

29.04.2019 - 12:35 [ British Geological Survey ]

World Magnetic Model (WMM)

The World Magnetic Model (WMM) is a standard model of the core and large-scale crustal magnetic field. It is used extensively for navigation and in attitude and heading referencing systems by the UK Ministry of Defence, the US Department of Defense, the North Atlantic Treaty Organization and the International Hydrographic Organization.

(…)

The WMM is a model of the core and large-scale crustal fields only. However the satellite data contain unwanted signals such as small-scale crustal, external ionospheric and magnetospheric and their induced counterparts. These fields would have added noise to the WMM2015 SV model and could have biased its estimates.

BGS employed two techniques to avoid the contamination caused by external magnetic fields. Firstly we rejected those data most contaminated by these sources, as identified by a combination of local time, geomagnetic indices and solar wind data. ……..

29.04.2019 - 10:51 [ Phys.org ]

Scientists predict sun’s activity will be weak during next solar cycle

(8. April 2019)

„We expect Solar Cycle 25 will be very similar to Cycle 24: another fairly weak cycle, preceded by a long, deep minimum,“ said panel co-chair Lisa Upton, Ph.D., solar physicist with Space Systems Research Corp. „The expectation that Cycle 25 will be comparable in size to Cycle 24 means that the steady decline in solar cycle amplitude, seen from cycles 21-24, has come to an end and that there is no indication that we are currently approaching a Maunder-type minimum in solar activity.“

14.04.2019 - 19:50 [ Washington Post ]

Scientists predict a new solar cycle is about to begin and that it might be stronger than the last one

(11. April 2019)

The decline in sunspot activity through cycle 24 was worrisome to some space weather scientists in that it suggested a return to a lengthy “solar drought,” reminiscent of the Maunder Minimum period of 1645-1715. Records show the sun was essentially spotless for this lengthy period, coinciding with the “Little Ice Age” in Europe and tickling the interest of scientists to wonder whether there is a cause-and-effect relationship between solar behavior and Earth’s climate.

14.04.2019 - 19:47 [ Phys.org ]

Scientists predict sun’s activity will be weak during next solar cycle

(8. April 2019)

„We expect Solar Cycle 25 will be very similar to Cycle 24: another fairly weak cycle, preceded by a long, deep minimum,“ said panel co-chair Lisa Upton, Ph.D., solar physicist with Space Systems Research Corp. „The expectation that Cycle 25 will be comparable in size to Cycle 24 means that the steady decline in solar cycle amplitude, seen from cycles 21-24, has come to an end and that there is no indication that we are currently approaching a Maunder-type minimum in solar activity.“

14.04.2019 - 19:46 [ National Aeronautics and Space Administration ]

Solar Wind Loses Power, Hits 50-year Low

(23. September 2008)

In a briefing today at NASA headquarters, solar physicists announced that the solar wind is losing power.

„The average pressure of the solar wind has dropped more than 20% since the mid-1990s,“ says Dave McComas of the Southwest Research Institute in San Antonio, Texas. „This is the weakest it’s been since we began monitoring solar wind almost 50 years ago.“

14.04.2019 - 18:54 [ Telegraph.co.uk ]

Sun’s protective ‚bubble‘ is shrinking

(18.10.2008)

The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, Nasa scientists have warned.

29.03.2019 - 10:50 [ Metro.co.uk ]

There is mysterious ‘undocumented technology’ hidden on Intel computer chips, researchers say

Computer experts have claimed that the chips which power most of the computers in the world are hiding mysterious and ‘undocumented’ technology.

Analysts from Positive Technologies alleged that Intel chips and processors contain an enigmatic ‘logic signal analyser’ capable of reading ‘almost all data on a computer’.

The claims are likely to alarm conspiracy theorists …

29.03.2019 - 08:11 [ Alexandria Ocasio-Cortez, Abgeordnete im US Repräsentantenhaus / Twitter ]

It’s almost as though there is a directed + concerted far-right propaganda machine with a whole cable news channel, and a dark-money internet operation propped up by the Mercers et al dedicated to maligning me & stoking nat’l division, reported on by @JaneMayerNYer or something

02.03.2019 - 19:30 [ Spectator ]

Lying with science: a guide to myth debunking

The shamelessness of the apocaholics is increasingly blatant. They know that even if a story of impending doom is thoroughly debunked, the correction comes too late. The gullible media will have relayed the headline without checking, so the activists have made their fake-news hit, perhaps even raised funds on the back of it, and won.

Take the story on February 10 that ‘insects could vanish within a century’, as the Guardian’s Damian Carrington put it, echoed by the BBC.

08.12.2018 - 15:40 [ USA Today ]

1 in 4 Americans doesn’t know Earth circles sun

(15.2.2014) To put the brightest possible spin on this story is to say that three-quarters of Americans are fully aware that the Earth revolves around the sun.

The downside, of course, is that means 1 in 4 are in the dark about what Discovery calls „probably the most basic question in science.“

08.12.2018 - 15:39 [ Science in School - The European Journal for science teachers ]

What Europeans really think (and know) about science and technology

(2006) Another part of the survey concerns people’s knowledge of scientific facts. Thirteen statements were made, and the participants were asked to determine whether they were true or false. The chart below shows the overall results.

Quiz statements
1. The Sun goes around the Earth.
true: 29%
false: 66%
don’t know: 4%

08.12.2018 - 15:32 [ Huffington Post ]

Waiting For The Next Sunspot Cycle: 2019-2030

(6.12.2017) By Cycle 25 or 26, magnetic fields may be too weak to punch through the solar surface and form recognizable sunspots at all,

08.12.2018 - 15:25 [ Resonance.is ]

Is our solar system heating up?

With the decrease of solar activity, the magnetic field of oursun is losing power too. This heliosphere shields us forming a gigantic bubble which surrounds and protects our solar system from harmful galactic cosmic rays, these high-energy particles that zip through the universe. Thanks to Voyagers 1 leaving the Solar system, we now have a good vision of it and of its shielding effect. It appears to be an indispensable protection for our fast moving throughout the Universe. But, with a weaker heliosphere Earth will begin to endure more and more the cosmic rays.

08.12.2018 - 15:19 [ ScienceMag.com ]

Decades-Long Changes of the Interstellar Wind Through Our Solar System

(6.9.2013) The flow of interstellar gas and dust through the solar system was thought to be unvarying, but Frisch et al. (p. 1080) show that there has been a significant variation of the direction of the flow of interstellar helium through the solar system over the past 40 years.

08.12.2018 - 15:14 [ Telegraph.co.uk ]

Sun’s protective ‚bubble‘ is shrinking

(18.10.2008) The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, Nasa scientists have warned.

08.12.2018 - 15:12 [ Leibniz-Institut für Atmosphärenphysik e.V. an der Universität Rostock ]

Influence of the 11-year solar cycle on planetary wave structures in the stratosphere and mesosphere

(2011) The stationary wave structures in the spatial distribution of stratospheric ozone have a significant influence on the local radiative heating and therefore on planetary wave propagation, temperature, circulation and trace gas distributions in the stratosphere and mesosphere. We show that these effects of O3* , which is the zonally asymmetric component of ozone, are modified by the 11-year cycle in solar irradiation,

08.12.2018 - 14:54 [ Washington Post ]

Sun activity is in free fall, but you shouldn’t expect a new little ice age

(11.11.2013) “Solar activity is declining very fast at the moment,” Mike Lockwood, a professor of space environmental physics at Britain’s Reading University, said, “we estimate faster than at any time in the last 9,300 years.”

08.12.2018 - 14:50 [ BBC ]

Has the Sun gone to sleep?

(17.Januar 2014) Scientists are saying that the Sun is in a phase of „solar lull“ – meaning that it has fallen asleep – and it is baffling them.

08.12.2018 - 14:44 [ notrickszone.com ]

Solar Cycle Continues To Be The Weakest In 2 Centuries

(23.8.2017) Our source of energy and life at the center of our solar system was significantly below normal with respect to activity last month.

The measured sunspot number (SSN) was 18.3. That was only 36% of what is typical (51) this far into the solar cycle – calculated from the previous 23 solar cycles recorded.

08.12.2018 - 14:31 [ Space.com ]

No Global Cooling Miracle: Sun’s Activity Lull Will Stop Soon, Study Suggests

We can’t count on waning solar activity to help bail us out of our climate-change problem in the near future, a new study suggests.

08.12.2018 - 14:24 [ Firstpost.com ]

Mini ice-age, planet cooling from natural dip in Sun’s heat ruled out: Study

A team of scientists from the Center of Excellence in Space Sciences and Department of Physical Sciences at Indian Institute of Science Education and Research (IISER) Kolkata led by Prantika Bhowmik and Professor Dibyendu Nandi have dismissed the speculation ofessor Dibyendu Nandi have dismissed the speculation and claim ……………………..

20.11.2018 - 14:33 [ Nicolas Lewis / judithcurry.com ]

A major problem with the Resplandy et al. ocean heat uptake paper

(6.11.2018) I wanted to make sure that I had not overlooked something in my calculations, so later on November 1st I emailed Laure Resplandy querying the ΔAPOClimate trend figure in her paper and asking for her to look into the difference in our trend estimates as a matter of urgency, explaining that in view of the media coverage of the paper I was contemplating web-publishing a comment on it within a matter of days. To date I have had no substantive response from her, despite subsequently sending a further email containing the key analysis sections from a draft of this article.

How might Laure Resplandy [xiv] have miscalculated the ΔAPOClimate trend as 1.16 per meg per year?

20.11.2018 - 14:31 [ investors.com ]

Global Warming: Another Doomsday Climate Model Flunks A Math Test

(15.11.2018) Media around the world seized upon the report as yet another indicator of climate-change doom and runaway global warming. No surprise, since most of the media faithfully adhere to the Holy Church of Global Warming.

12.11.2018 - 13:31 [ bigthink.com ]

NASA unveils new goals for Moon, Mars, including space privatization ​

(1.10.2018) These certainly mean more dollars headed toward research and development; while the original Apollo and other missions were government-funded and ultimately fell under the purview of the military (indeed, one of the primary stated goals of the Gemini and Apollo programs was to lessen the „Missile gap“ between the United States and the Soviet Union), this new concept relies heavily on private investment, corporate involvement and funding, and the eventual mining and financial rewards of „exploration and use“ of the lunar and Mars surfaces.

12.11.2018 - 13:25 [ investors.com ]

Space Station May Be Stranded; Here’s When U.S. Rockets Can Get There

(11.10.2018) Russia grounded all space flights after a Soyuz rocket failure Thursday, putting the International Space Station at risk and adding pressure on Boeing (BA) and SpaceX to get their rockets ready for NASA service.

12.11.2018 - 13:22 [ Space.com ]

Soyuz Rocket’s Launch-Abort Close Call Highlights Poor Space-Policy Decisions (Op-Ed)

(16.10.2018) One of the cornerstones of the current space policy is to somehow „privatize“ or „commercialize“ the ISS by 2024-2025 and to use the „savings“ from that privatization to help fund the program. The idea of operating the ISS profitably is so preposterous that I don’t feel a need to comment further here. Besides, from where is the funding to come before 2024-2025?

What this look back shows is consistently poor policy decisions going back at least 14 years. What will happen to NASA and U.S. spaceflight in the coming years?

12.11.2018 - 12:37 [ Vox.com ]

NASA’s leader wants to privatize the International Space Station. It’s a remarkably terrible idea.

(9.6.2018) Since taking office as NASA’s administrator in April, Jim Bridenstine (previously a member of Congress from Oklahoma with no scientific background) has pushed this scheme, most recently in an interview this week with the Washington Post.

12.11.2018 - 12:31 [ Washington Post ]

NASA’s new administrator says he’s talking to companies about taking over operations of the International Space Station

(5.6.2018) “We’re in a position now where there are people out there that can do commercial management of the International Space Station,” Bridenstine said in his first extensive interview since being sworn in as NASA administrator in April. “I’ve talked to many large corporations that are interested in getting involved in that through a consortium, if you will.”

12.11.2018 - 12:08 [ Europäische Weltraumagentur (ESA) ]

ESA’s space vision presented at Paris Peace Forum

ESA astronaut Claudie Haigneré attended the Paris Peace Forum this weekend, presenting the Agency’s vision for engaging humankind in multilateral cooperation for space exploration with peaceful objectives.

12.11.2018 - 11:48 [ theGuardian.com ]

ESA director general argues for more collaboration as EU ramps up investment in own space agency

(6.6.2018) The EU has clashed with the head of the independent European Space Agency (ESA) over the bloc’s plans to take greater control over the continent’s space programmes, in a move that could cut the UK out of key decisions.

12.08.2018 - 16:20 [ Haaretz ]

How Evolution Became a Dirty Word in Israel

The main question is whether in the Israel of 2018 an effort is being made to blur the Earth’s age or conceal biology’s most significant theory. How can one present the scientific truth to the average Israeli, who is curious and has a wide variety of beliefs? Is there anywhere in Israel where an exhibit claims unapologetically that man descends from apes? Is there any public explanation of Darwin’s theory?

If there is such an exhibition, I don’t know where it is. My searches came up with nothing. But no website or museum that I visited claimed that it was required to conceal, blur or distort the truth; instead, precautions were taken simply to avoid flak.