373 K SUPERCONDUCTORS
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 CV +  List and 373-I are attached below. See   also ref: arXiv:1803.10845 
"High field
paramagnetic
Meissn
er effect in Mo$_{100-x}$Re$_x$ alloy superconductors" 
We have shown last year that the 373K superconductors are real.
For colleagues, who are aware that any material with a resistance  visibly less then Cu  is superconductor
-on the right side we show the the 373 K tape of thickness 40 microns in series with  an identical size copper tape being blown by
 137 A current and the superconductor tape is intact.


​THE FIRST EVER PURE ROOM TEMPERATURE MEISSNER EFFECT and TRANSITION TO NON-SUPERCONDUCTOR STATE VIDEO  IS  POSTED HERE.
ALL OBSERVATIONS OF LEVITATION  ARE NOT STRICTLY A MEISSNER EFFECT( eg.see floating frogs). IN THE DEMONSTRATIONS  WITH Y1Ba2Cu3O7-c  THERE ARE FORCES DUE TO THE CURRENTS OF THE ABRIKOSOV FLUX LINES LATTICE. THE LOW FIRST CRITICAL MAGNETIC FIELD IS RESPONSIBLE FOR DISKS ORIENTED PERPENDICULAR TO THE MAGNETIC FIELD  and FOR THE FROGS also  NOT PARALLEL.

Our products include Room Temperature  high current carrying tapes,   Josephson Junctions and High Power THz emission transported along the cable as shown here.  Welcome!


Ivan  Kostadinov
373K-Superocnductors.com
 Private Research Institute
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Tree years ago the 373K Superconductors first article started the 21 century superconductor technology revolution, as the semiconductors did in the 1950-ties. Of course all today technology will soon be blown up in the next few years.  What was included in "373K..."  was an extensive 10 years search for new superconductors.  Thousands  of  samples, compositions were studied  and testing experiments of all basic characteristics of the studied materials were conducted. This work was discussed over 3 continents in my visits to tens of labs in Europe, China and South Africa. It should tell you that I am not a camel- my  article of copied in the first day of March04,2016 by my 25600 colleagues and is ignored by all. The results are inescapable,  regardless of how mean my colleagues  from APS may be.
The world can't just drop such a treasure to suit the ultra-left policy of APS. Can this serve as a memo? Ok or not it is a start.

Google  is  ignoring this new technology,  posting  some unclear texts with the impression of  something wrong . After all the demonstrations  here? The main argument of all is -  why not give the composition and the technology to all. Why not think, what will be included in such a package not to mention  Apple and Google keeping way less dangerous  secrets and codes firmly.

 Be aware that we are changing the exhibits frequently and the text as well. New  experiments are continuously done. Posted is the signal of the police detector on video of the THz  Josephson Junction mesa emission. A new wire blowing video is described further.  New sections with new type of data will be published as  "373K Superconductors -II "article only here. The unpublished early work  Universality in Normal metal- Superconductor (N-S) - nano bridges and Andreev reflection  is now  removed. Its larger version (not from the slides) with more explanations can be posted in few months. The behavior of the 373K type superconductors on a magnet is seen from the video-3 and this conclude a complete set of 3 demonstrations. Sorry, the video can not be posted as planned. Moreover we are taking back the tape blowing with the high current as well as the police detector recording and some other exhibits as well.

A video was  shown with a black superconductor tape (about 0.4mil layer on a copper tape both about 1.6mil thick and about 1/2 inch wide) and a copper tape of the same total length, width and thickness, connected in series, when passing a 137 A current.  Shortly the copper tape is blown up and photographs of the set up and the tapes were shown after the blow up. Included was the piece of paper below the tapes with traces of the process.
​
 About a previous Avatar picture see: Report On The 2010 Workshop on HTS Wires Dr. Bruce P. Strauss, Office of High Energy Physics  U.S. DOE Office of Science. The present Avatar picture below is from a talk of Paul C. W. Chu.

 For  comparison we give  the first authentic images of this "Avatar type fiction" material and in particular reflection from the superconductor in the visible light range as compared with a normal metallic mirror (brass type) and a dielectric mirror-Si wafer. More photos will be shown soon.

​
The mentioned above video taken back now,  was shown a police detector on a copper foil antenna recording only  the noise initially. The 3 microwave emissions for 10 seconds each are heard  clearly with well separated loud sound. The microwave signal was transmitted via  a coaxial  cable approximately 10 meters long, Simultaneously produced the emission field image is shown last on the left. The sharp circular edge is formed by  1-2 THz sub - millimeter waves.
​
Two  photographs are presenting the THz microwave field in front of a metallic grating.  The second photo down on the left have a cleaner rectangular area in the middle. The clean rectangular area can be a suppression of the emission in the central area or it may be a transmission in this area. An other option is frequency range variation. Evidently, the emission can  be influenced in one or other way, as expected. Observers asked about side photos. When available such will be shown, but please have in mind that in air the larger intensity wave field could be visualized only up to 1-1.5 cm from the source. Using  pretty narrow band emission sources one can work in an air transmission window and get broader and longer range emission.

The next bottom left photo show an about 4 cm long cylinder with one contact still attached after passing 2100 A current on July 29, 2012,  3 times for several seconds. It was destroyed later. The small sample had 1/4 inch diameter and about 0.2 cm thickness. On November 30, 2010 a record high current of 1900 A was passed under compressed  copper contacts. All high currents were recorded by the first 2 digits only. At present a precise Ammeter is in operation with a range up to 5000 A, all digits relevant. For comparison - the Columbus, Bixby  American Electric Power station was passing currents in the range of 2000 A for years testing the 3 phase liquid Nitrogen cooled superconductors system.


The Fig.1 from the 373K superconductors paper is shown to mark the position of 100 degrees C and to show the negative voltage, which is not at all demonstrating negative resistance, because its value is not related to the current.  More precisely in a quantum state with a given current the voltage is in-determined as a pair of non-commuting quantum variables.  After heating the sample to above the critical temperature the resistance is seen to appear, the sample not being in a quantum state.

The  photo at the bottom right shows a 3 inch diameter magnet with a field of 1.4T in the center. The superconductor pellet in the form of a 3/4 inch diameter disk is suspended below the magnet.  The pellet is attracted to the magnet due to super-currents, and suspends below the surface of the magnet due to gravity. If the magnet is rotated the pellet moves without friction (not counting the existing air friction ) and remains below the magnet, at a minimum energy position. On the right is the  photo is an upright superconductor sample on the same 3 inch diameter magnet with about  1.4T magnetic filed near the center. On the left is an other one below the same magnet.

The photo on the top right shows solar light reflection from three objects of different nature.  The largest is a metallic brass type mirror. The darker middle sized object is a Si wafer - a dielectric mirror.  In the center is a mirror reflecting the solar light. It is the  same 3/4 inch superconductor, which is suspended under the magnet at the bottom right photograph.

The  photo on the left below is the same 3 objects in a closeup view, showing for comparison the image of the  back surface of an ipad illuminated by the reflected from the mirrors light. .


References.
Manuscript.-arXiv:1603.01482v1 [physics.gen-ph] 4 Mar 2016,  for the presented Shapiro Steps  see Shapiro Steps in the Absence of Microwave Radiation-arXiv:1107.0061. and p.37 of the thesis "Superconductive Effects in Thin Cluster Films" by J. A. H. Grigg,  University of Canterbury, 2012 and many others (google), also the more proper name Self Induced Shapiro Steps on  p.14 of the paper: arXiv:1603.09611v1 [cond-mat.mes-hall] 31 Mar 2016.

373K Superconductors.com.
Private Research Institute.
The Fig.1 from the 373K superconductors paper is shown to mark the position of 100 degrees C and to demonstrate the negative voltage, which is not at all demonstrating negative resistance, because its value is not related to the current. After heating the sample to above the critical temperature the resistance is seen to appear, the sample not being in a quantum state.
A video is being prepared which demonstrates superconductivity of the new materials,  exhibiting a different-not well known type of behavior in magnetic field. A basic property of any superconductor is to shield the magnetic field (up to the critical field Hc1). The video shows many minimal energy positions related to the surface currents induced in the superconductor shielding the magnetic field. Reflections and oscillations  similar to a particle motion in a potential well are seen, and also scattering from the field. (We repeat: levitation in a magnetic field per se does not definitively indicate superconductivity -- experiments have levitated frogs in high magnetic field coils).  The video will be released in the future.  We are contacted by people and companies and new applications for the market will be shown soon.


The  photo at the bottom right shows a 3 inch diameter magnet with a field of 1.4T in the center. The superconductor pellet in the form of a 1 inch diameter disk is suspended below the magnet.  The pellet is attracted to the magnet due to supercurrents, and suspends below the surface of the magnet due to gravity. If the magnet is rotated the pellet moves without friction (not counting the existing air friction ) and remains below the magnet, at a minimum energy position.

The photo on the top right shows solar light reflection from three objects of different nature.  The largest is a metallic brass type mirror. The darker middle sized object is a Si wafer - a dielectric mirror.  In the center is the superconductor pellet mirror reflecting the solar light.

The photo on the left below is the same 3 objects in a closeup view, showing for comparison the image of the  back surface of an ipad illuminated by the reflected from the mirrors light.


References.
Manuscript.-arXiv:1603.01482v1 [physics.gen-ph] 4 Mar 2016,  for our Self Induced Shapiro Steps check  p.14 of the next ref.
arXiv:1603.09611v1 [cond-mat.mes-hall] 31 Mar 2016

About the Avatar picture below see: 
Report On The 2010 Workshop on HTS Wires Dr. Bruce P. Strauss, Office of High Energy Physics  U.S. DOE Office of Science. 
​
373K Superconductors is a Private Research Institute.
We do not receive any public or private forms of financial support.  We have presented evidence for working THz sources, high current tapes and Josephson electronics. This research is ongoing and advancements will be shown here. Your support is very much welcome.  
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We  are sorry for being short of our product, after 17kg of the highest grade 373K superconductor  material  were sold at the opening to space travelers.
An extended version of the 373K paper will be ready soon. The unique p
osted photographs are free.  Find better Klee pictures  anywhere else.

www.373k-superconductors.com
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