El templo de Kailāsanātha o templo Kailash es uno de los 34 monasterios y templos que se extienden sobre más de 2 kilómetros que fueron excavados lado a lado en la pared de un acantilado de basalto en el complejo arquitectónico localizado en Ellora, Maharastra, India. Representa el epítome de la arquitectura rupestre de la India.[1] Está diseñado para recordar el monte Kailāsh, morada del dios Shivá.[2] Si bien exhibe características típicas dravídicas, fue tallada de una sola roca y construida quizá en el siglo VIII por el rey RashtrakutaKrishna I.
El templo es famoso por su excavación vertical. Los talladores empezaron por la cima de la roca original y excavaron hacia abajo, exhumando el templo de la roca existente. Los métodos tradicionales fueron seguidos de manera estricta por el maestro arquitecto que no podría haberse logrado mediante la excavación por el frente.[3] Los arquitectos que diseñaron este templo provenían del sureño reino de Pallava.[4] Se estima que se extrajeron alrededor de 200.000 toneladas de rocas durante siglos para construir la estructura monolítica.[4]
- «Ellora UNESCO World Heritage Site». Consultado el 18 de mayo de 2010.
- ↑ «Ellora Caves». New World Encyclopedia (en inglés). 3 de abril de 2008. Consultado el 18 de mayo de 2010.
- ↑ Rajan, K.V. Soundara (1998). Rock-cut Temple Styles`. Mumbai, India: Somaily Publications. pp. 142-143. ISBN 81 7039 218 7.
- ↑ a b «Kailasanatha Temple – Ellora». TempleNet. Consultado el 19 de diciembre de 2006.
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Air-conditioning dates back to prehistory. Ancient Egyptian buildings used a wide variety of passive air-conditioning techniques.[4] These became widespread from the Iberian Peninsula through North Africa, the Middle East, and Northern India.[5] Similar techniques were developed in hot climates elsewhere.[further explanation needed]
- Mohamed, Mady A.A. (January 2010). Lehmann, S.; Waer, H. A.; Al-Qawasmi, J. (eds.). Traditional Ways of Dealing with Climate in Egypt. The Seventh International Conference of Sustainable Architecture and Urban Development (SAUD 2010). Amman, Jordan: The Center for the Study of Architecture in Arab Region (CSAAR Press). pp. 247–266. Archivedfrom the original on May 13, 2021. Retrieved May 12,2021.
- ^ a b c Ford, Brian (September 2001). “Passive downdraught evaporative cooling: principles and practice” (PDF). Architectural Research Quarterly. Cambridge University Press. 5 (3): 271–280. doi:10.1017/S1359135501001312. ISSN 1359-1355. Archived (PDF) from the original on April 16, 2021. Retrieved May 12, 2021.
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FICTION?
FICTION? Solomon‘s carpet[3] was reportedly made of green silk with a golden weft, sixty miles (97 km) long and sixty miles (97 km) wide: “when Solomon sat upon the carpet he was caught up by the wind, and sailed through the air so quickly that he breakfasted at Damascus and supped in Media.”[4]
Magnetic fields provide a new way to communicate wirelessly
A new technique could pave the way for ultra low power and high-security wireless communication systems
Date:September 1, 2015Source:University of California – San DiegoSummary:Electrical engineers have demonstrated a new wireless communication technique that works by sending magnetic signals through the human body. The new technology could offer a lower power and more secure way to communicate information between wearable electronic devices, providing an improved alternative to existing wireless communication systems, researchers said. They presented their findings Aug. 26 at the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society in Milan, Italy.
While this work is still a proof-of-concept demonstration, researchers envision developing it into an ultra low power wireless system that can easily transmit information around the human body. An application of this technology would be a wireless sensor network for full-body health monitoring.
“In the future, people are going to be wearing more electronics, such as smart watches, fitness trackers and health monitors. All of these devices will need to communicate information with each other. Currently, these devices transmit information using Bluetooth radios, which use a lot of power to communicate. We’re trying to find new ways to communicate information around the human body that use much less power,” said Patrick Mercier, a professor in the Department of Electrical and Computer Engineering at UC San Diego who led the study. Mercier also serves as the co-director of the UC San Diego Center for Wearable Sensors.
Communicating magnetic signals through the human body
The new study presents a solution to some of the main barriers of other wireless communication systems: in order to reduce power consumption when transmitting and receiving information, wireless systems need to send signals that can easily travel from one side of the human body to another. Bluetooth technology uses electromagnetic radiation to transmit data, however these radio signals do not easily pass through the human body and therefore require a power boost to help overcome this signal obstruction, or “path loss.”
In this study, electrical engineers demonstrated a technique called magnetic field human body communication, which uses the body as a vehicle to deliver magnetic energy between electronic devices. An advantage of this system is that magnetic fields are able to pass freely through biological tissues, so signals are communicated with much lower path losses and potentially, much lower power consumption. In their experiments, researchers demonstrated that the magnetic communication link works well on the body, but they did not test the technique’s power consumption. Researchers showed that the path losses associated with magnetic field human body communication are upwards of 10 million times lower than those associated with Bluetooth radios.
“This technique, to our knowledge, achieves the lowest path losses out of any wireless human body communication system that’s been demonstrated so far. This technique will allow us to build much lower power wearable devices,” said Mercier.
Lower power consumption also leads to longer battery life. “A problem with wearable devices like smart watches is that they have short operating times because they are limited to using small batteries. With this magnetic field human body communication system, we hope to significantly reduce power consumption as well as how frequently users need to recharge their devices,” said Jiwoong Park, a Ph.D student in Mercier’s Energy-Efficient Microsystems Lab at the UC San Diego Jacobs School of Engineering and first author of the study.
The researchers also pointed out that this technique does not pose any serious health risks. Since this technique is intended for applications in ultra low power communication systems, the transmitting power of the magnetic signals sent through the body is expected to be many times lower than that of MRI scanners and wireless implant devices.
Another potential advantage of magnetic field human body communication is that it could offer more security than Bluetooth networks. Because Bluetooth radio communicates data over the air, anyone standing within 30 feet can potentially eavesdrop on that communication link. On the other hand, magnetic field human body communication employs the human body as a communication medium, making the communication link less vulnerable to eavesdropping. With this technique, researchers demonstrated that magnetic communication is strong on the body but dramatically decreases off the body. To put this in the context of a personal full-body wireless communication network, information would neither be radiated off the body nor be transmitted from one person to another.
“Increased privacy is desirable when you’re using your wearable devices to transmit information about your health,” said Park.
Demonstrating magnetic communication with a proof-of-concept prototype
The researchers built a prototype to demonstrate the magnetic field human body communication technique. The prototype consists of copper wires insulated with PVC tubes. On one end, the copper wires are hooked up to an external analyzer and on the other end, the wires are wrapped in coils around three areas of the body: the head, arms and legs. These coils serve as sources for magnetic fields and are able to send magnetic signals from one part of the body to another using the body as a guide. With this prototype, researchers were able to demonstrate and measure low path loss communication from arm to arm, from arm to head, and from arm to leg.
Researchers noted that a limitation of this technique is that magnetic fields require circular geometries in order to propagate through the human body. Devices like smart watches, headbands and belts will all work well using magnetic field human body communication, but not a small patch that is stuck on the chest and used to measure heart rate, for example. As long as the wearable application can wrap around a part of the body, it should work just fine with this technique, researchers explained.
Story Source:
Materials provided by University of California – San Diego. Note: Content may be edited for style and length.
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Robert David Steele (July 16, 1952 – August 29, 2021) was an American CIA officer and conspiracy theorist.[2]
- Schachtman, Noah (December 14, 2007). “How to Restore Spies Credbility: Go Open Source”. Wired. Retrieved September 2, 2021.
“every us terrorism is a false flag”
NOAH SHACHTMANSECURITY12.14.2007 10:10 AM How to Restore Spies Credbility: Go Open Source In the mid ’90s, Robert Steele, a former-CIA officer and early proponent of open source intelligence, testified before the Aspin-Brown Commission about the tremendous value of unclassified information. The Commission decided to put this open source intelligence, or “OSINT,” to the test and directed that Steele and his network of commercial intelligence contacts would go […]
Sanpaku gan (三白眼) or sanpaku (三白) is a Japanese term meaning “three whites”.[1] introduced into English by George Ohsawa in the mid-1960s.[2] It is generally referred to in English as “sanpaku eyes” and refers to eyes in which either the white space above or below the iris is revealed. The medical condition in which sclera can be seen below the iris is called “lower scleral show” or “inferior scleral show.”
In a healthy face, no sclera should be exposed below the irises.[5] A condition where the sclera area is visibly exaggerated is called “scleral show” or “scleral exposure,” and may be caused by endocrine imbalance, physical trauma, aging, or cranofacial congenital anomalies.[6]
- Evans, T. B., A Dictionary of Japanese Loanwords (Westport, CT: Greenwood Press, 1997), p. 150,
- ^ a b c d Nyoiti Sakurazawa, William Dufty translator (1965) You Are All Sanpaku, p. 70, Citadel Press ISBN 0-8065-0728-4
- ^ Tom Wolfe (18 August 1963) “Kennedy to Bardot, Too Much Sanpaku”, New York Herald Tribune
- ^ Kushi, Michio and Jack, Alex (1987) The Book of Macrobiotics: The Universal Way of Health, Happiness, and Peace, page 295, Oxford University Press
- ^ Fard, Shahrooz Shafaee; Sezavar, Mehdi; Sarkarat, Farzin; Nowrouzi, Amin; Yazdani, Mohammad Masoud (2017). “Inferior scleral show changes following le fort I osteotomy in CL III patients with maxillary retrusion”. Journal of Craniomaxillofacial Research. 4 (2): 360–365. Retrieved September 12, 2021.
- ^ Loeb, R. (1988). “Scleral show”. Aesthetic Plastic Surgery. 12 (3): 165–70. doi:10.1007/BF01570927. PMID 3189035. S2CID 5917422. Retrieved September 12, 2021.
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TECHNOLOGY
Smart technology sees through walls to track and identify people
“RF-Pose” isn’t X-ray vision, but it’s getting there.
Using wireless signals, RF-Pose could serve as a health care system to monitor patients’ movements from the other side of a wall.MIT CSAIL
July 8, 2018, 6:01 AM EDT / Updated July 8, 2018, 6:01 AM EDTBy Kate Baggaley
A group of researchers and students at MIT have developed an intelligent radar-like technology that makes it possible to see through walls to track people as they move aroun[d]
The technology, which uses artificial intelligence to interpret radio wave data, grows out of earlier work by the same group. Previous versions of the technology could detect a person’s silhouette behind a wall, but Katabi said this is the first time it’s been possible to closely track and identify people.
The heart of RF-Pose is a laptop-sized radio transmitter. The radio waves it beams out pass through walls but are reflected by human bodies because of their high water content. Computer algorithms analyze the reflected waves, homing in on the head, hands, feet and other key body parts to produce moving stick figures on a screen.
Katabi and her team trained RF-Pose by giving it photographs of people as well as the crude images created by the reflected radio waves. Eventually, RF-Posed learned to produce a stick figure whenever its radio signals indicated the presence of a person.
What do other experts make of the new technology? Ginés Hidalgo, a research associate at the Robotics Institute of Carnegie Mellon University in Pittsburgh, told NBC News MACH in an email that it was of limited use at this point because the radio signals it uses are unable to pass through thick walls.
“It could become a breakthrough” if that limitation can be addressed, said Hidalgo, who was not involved in the project.
Desarrollan en Japón una tecnología que borra los recuerdos como el dispositivo de los ‘Hombres de negro’ (y ya funciona en ratones)
Publicado:17 nov 2021 20:24 GMT
Un grupo de científicos japoneses informó este miércoles sobre el desarrollo de un sistema neuronal-óptico capaz de manipular los recuerdo[s]
La nueva técnica dificulta la actividad nerviosa, conocida como ‘potenciación a largo plazo’ (LTP, por sus siglas en inglés), que es fundamental para la formación de la memoria, explicó Akihiro Goto, investigador de la Universidad de Kioto y primer autor de un reciente estudio, publicado en la revista Science.
“En ‘Hombres de negro’ los agentes borran los recuerdos con un destello de luz. Nosotros hicimos algo parecido“, señaló el científico, explicando que su equipo también utilizó la luz para desactivar la cofilina, una proteína esencial para la LTP y el funcionamiento de la sinapsis, la aproximación funcional intercelular especializada entre neuronas.
[l]os investigadores inyectaron un virus adenoasociado que luego expresa una proteína fluorescente, en el cerebro de los ratones y se obtuvo un control total sobre la consolidación de la información en cualquier parte del cerebro y en cualquier momento. Cuando se expuso a la luz, el virus liberó oxígeno reactivo que bloqueó la cofilina.
Durante el experimento, los roedores fueron expuestos a la luz dos veces: primero, después de aprender una tarea concreta y, luego, mientras dormían después de aprender la tarea. Como resultado, los ratones perdieron completamente la información aprendida. “Fue sorprendente que la eliminación de la LTP local mediante iluminación dirigida borrara claramente la memoria”, subrayó Goto.
Por su parte, el coautor de la investigación Yasunori Hayashi apuntó que la nueva tecnología puede proporcionar un método para aislar la formación de la memoria tanto temporal como espacialmente en el cerebro a nivel celular.
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