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Solar mystery: Scientists turn to tree rings to understand Sun's strange 11-year cycle | Science | News


| UPDATED: 15:14, Thu, Jan 28, 2021
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The Sun has long been recognised to experience different periods of solar activity. Galileo first pointed a telescope at the sun in 1612, and astronomers have since observed and recorded the coming and going of sunspots. ....

Roberta Rohde , Lukas Wacker , Hans Arno Synal , Grasse Tyson , Laboratory Of Ion Beam Physics , Hah Biomed Central Ltd , Privacy Notice , Biomed Central , Ion Beam Physics , Professor Dr Hans Arno Synal , Global Warming , ரோபர்ட்டா ரோட் , லுகாஸ் வாக்கேர் , புல் டைசன் , ஆய்வகம் ஆஃப் அயன் உத்திரம் இயற்பியல் , ஹா பயோமெட் மைய லிமிடெட் , ப்ரைவஸீ அறிவிப்பு , பயோமெட் மைய , அயன் உத்திரம் இயற்பியல் , உலகளாவிய வெப்பமயமாதல் ,

Tree rings chart more than 1,000 years of solar activity


Researchers have reconstructed solar activity back to the year 969 using measurements of radioactive carbon in tree rings.
Those results help scientists better understand the dynamics of the sun and allow more precise dating of organic materials using the C14 method.
What goes on in the sun can only be observed indirectly. Sunspots, for instance, reveal the degree of solar activity the more sunspots are visible on the surface of the sun, the more active is our central star deep inside.
Even though sunspots have been known since antiquity, they have only been documented in detail since the invention of the telescope around 400 years ago. We also now know that the number of spots varies in regular eleven-year cycles and that, there are long-lasting periods of strong and weak solar activity, which is also reflected in the climate on Earth. ....

Nicolas Brehm , Lukas Wacker , Laboratory Of Ion Beam Physics , Lund University , Max Planck Institute For Solar System Research , Ion Beam Physics , Max Planck Institute , Solar System Research , நிக்கோலாஸ் பிரெஹ்ம் , லுகாஸ் வாக்கேர் , ஆய்வகம் ஆஃப் அயன் உத்திரம் இயற்பியல் , லண்ட் பல்கலைக்கழகம் , அயன் உத்திரம் இயற்பியல் , சூரிய அமைப்பு ஆராய்ச்சி ,

Ideas, Inventions And Innovations : More Than Thousand Years of Solar Activity Tracked Back


Ideas, Inventions And Innovations
More Than Thousand Years of Solar Activity Tracked Back
An international team of researchers led by ETH Zurich has reconstructed solar activity back to the year 969 using measurements of radioactive carbon in tree rings. Those results help scientists to understand the dynamics of the sun and allow more precise dating of organic materials using the C14 method. 
A team of researchers has reconstructed solar activity back to the year 969. 
iframe width 708 height 402 src https://www.youtube.com/embed/AN7Tmra0gaI frameborder 0 allow accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture allowfullscreen /iframe
(Video: ETH Zurich)
What goes on in the sun can only be observed indirectly. Sunspots, for instance, reveal the degree of solar activity – the more sunspots are visible on the surface of the sun, the more active is our central star deep inside. Even though sunspots have ....

Lukas Wacker , Arno Synal , Laboratory Of Ion Beam Physics , Max Planck Institute For Solar System Research , Lund University , Ion Beam Physics , Max Planck Institute , Solar System Research , லுகாஸ் வாக்கேர் , ஆய்வகம் ஆஃப் அயன் உத்திரம் இயற்பியல் , லண்ட் பல்கலைக்கழகம் , அயன் உத்திரம் இயற்பியல் , சூரிய அமைப்பு ஆராய்ச்சி ,