Published: Mar 5, 2018 by Noe Nieto
En esta semana: Tardigrade o oso del agua (water bear), Marihuana, Linux y raspberrypie, El arte de las decoraciones de manuscriptos de la edad media, nanocristales para celdas solares mas eficientes y por ultimo el WTF de la semana.
- New tardigrade species with unusual eggs found in Japanese parking lot. No se, pero por alguna razón me acorde de la frase “Never nuke a country twice”.
- Bill Nye Shares Some Facts and Opinions on Marijuana. Bill Nye pointed out it is possible, even perhaps likely, that the tendency to become addicted to cannabis has its roots in human DNA. He believes it is either present or not present, using alcoholism to back up his hypothesis. “Some people get addicted, some people don’t,” said Nye. “Some people get high, some people don’t.” The Science Guy concluded that cannabis is really a substance which requires our attention and a lot more studies before we can claim to truly understand its effects.
- Why I fell in love with Antergos Linux. Antergos is a rolling release linux distro.
- Learn how to build a computer network with Raspberry Pis.. Básicamente se trata de instalar PiServer en una compu reciente y usar los raspberry pie como clientes ligeros/livianos/delgados (thin client). Nada mal.
- How Illuminated Medieval Manuscripts Were Made: A Step-by-Step Look at this Beautiful, Centuries-Old Craft.
- Silicon Nanocrystals for Superefficient Solar Cells
- This video is about physics of operation in multi junction solar cells. Talk given by Dr. Vijit Sabnis (Solar Junction) at Stanford University for EE 237: Solar Energy Conversion taught by Dr. Aneesh Nainani. Link to video.
- Silicon Nanocrystals for Superefficient Solar Cells. A typical solar cell generates only one electron per photon of incoming sunlight. Some exotic materials are thought to produce multiple electrons per photon, but for the first time, the same effect has been seen in silicon. Researchers showed that silicon nanocrystals can produce two or three electrons per photon of high-energy sunlight. By generating multiple electrons from high-energy photons, solar cells made of silicon nanocrystals could theoretically convert more than 40 percent of the energy in light into electrical power. This is only “one breakthrough out of maybe three or four” needed to produce cheap, superefficient solar cells.
- Best research-cell efficiencies.
- Astrophysicists have discovered how to control the ‘micolensing’ effects of strongly lensed Type 1a Supernovae with supercomputers at NERSC. Armed with this knowledge they believe they will be able to find 1,000 strongly lensed Type Ia supernovae in realtime from LSST data – that’s 20 times more than previous expectations.
- The Principle of Electric Wind in Plasma. Electric wind in plasma is a well-known consequence of interactions arising from collisions between charged particles (electrons or ions) and neutral particles. It refers to the flow of neutral gas that occurs when charged particles accelerate and collide with a neutral gas.
- Want More Efficient Simulators? Store Time in a Quantum Superposition NASA Seeking BIG Ideas for Solar Power on Mars. De todas las propuestas se seleccionaran cuatro y recibiran un estipendio para presentar su proyecto en el 2018 BIG Idea Forum. Nota, acabo de leer que ya seleccionaron a los ganadores.
- Portugal y el secreto de su redención. De oveja negra a hijo prodigio: desde 2015, cuando un Gobierno minoritario de izquierda tomó las riendas de Portugal, el país ibérico florece. Su ministro de Economía, Manuel Caldeira Cabral, explica el renacimiento luso
- Un pederasta sádico y retorcido. el británico que chantajeó en la red oscura a decenas de víctimas a las que obligaba a realizar actos degradantes
- Unos grngos hicieron un robot capaz de armar el famoso ‘cubo mágico’ en tan solo 0,38 segundos
- A un veterano gringo se le botó la canica y se mató junto con 3 rehenes que eran trabajadores del Veterans Home of California. El asaltante era miembro de Pathway Home, un programa para veteranos que sufren de trastorno por estrés postraumático. Un caso triste primero por las rehenes y luego por el veterano, sufren mucho después de la guerra.
- En Chiapas el Conacyt retira dos cátedras de la Unicach en represalia por protestas contra el honoris causa del secretario de la Defensa Nacional Salvador Cienfuegos Zepeda
- Oxford Biologists Outline What Alien Life Looks Like
- AMLO: Ya no voy a estar deteniendo a la gente si hay un fraude electoral
- UCLA Researchers Develop a New Class of Two-Dimensional Materials. Superlattices are materials comprised of alternating layers of ultra-thin “two-dimensional” sheets, which are only one or a few atoms thick. Current method to build a superlattice is to manually stack the ultrathin layers one on top of the other; another method is by Chemical Vapor Deposition. The new method to create monolayer atomic crystal molecular superlattices uses a process called “electrochemical intercalation” in which a negative voltage is applied. This injects negatively charged electrons into the 2D material. Then, this attracts positively charged ammonium molecules into the spaces between the atomic layers. Those ammonium molecules automatically assemble into new layers in the ordered crystal structure, creating a superlattice.
- Tensegrity: The ‘Architecture of Life’ Described by Computer Modeling. While most of biology and medicine focus on the key roles genes and chemicals play in the formation and control of living systems, the spatial arrangement of the components that make up those systems and the physical forces they experience are being increasingly recognized as equally important. Donald Ingber, M.D., Ph.D., Founding Director of the Wyss Institute at Harvard University, started investigating this “architecture of life” over thirty-five years ago, and discovered that Nature uses an architectural principle known as “tensegrity” (short for “tensional integrity”) to stabilize the shapes of living cells and to determine how they respond to mechanical forces. Tensegrity structures consist of elements that are either in a state of tension or compression, and the balance between those interacting forces allows such structures to stabilize themselves in state of isometric tension, much like muscles and bones in our bodies. This internal tension or “prestress” allows the entire structure to withstand stresses from outside forces, deform in a controlled way, and spontaneously pop back to its original shape when the stress is removed. The idea that tensegrity dictates the shape and organization of living cells was initially controversial, but as a result of experimental validation in multiple systems, it has gained greater acceptance over time. Tensegrity can also be hierarchical, in that each structural element can itself be a tensegrity structure at a smaller scale, with tensional integrity being maintained both locally and globally. Tensegrity could apply beyond the cellular level to all size scales of life, from atoms to whole organisms. Recent work has provided experimental support for that hypothesis by demonstrating that tensegrity is used at the scale of cellular nuclei, cytoskeletal elements, and individual molecules. Using a newly developed multi-scale modeling method scientists have now successfully demonstrated that tensegrity principles are used across various levels of size and structural complexity within living cells. Their work also revealed how tensegrity-based changes in molecular shape can drive the motion of cellular parts.
- What happens if you call the number 666 at 3:00 AM? You will hear the voice of a woman … or perhaps a man …
- Researchers develop a pill that mimics the effects of exercising. The compound, known as GW1516, or 516, essentially tricks the body to burn fat instead of glucose for energy.
- Python: range is not an iterator!
- Video of the Day: Robotics From the CES 2018 Show Floor
- Las cuentas de anaya. Golpe letal?
- CPTPP: el histórico acuerdo comercial firmado por México, Chile, Perú y otros 8 países del Pacífico para reducir sus barreras comerciales ¿Qué es el CPTTP? El pacto se llamaba originalmente Acuerdo Transpacífico de Cooperación Económica (TPP, por sus siglas en inglés), pero cuando Donald Trump llegó a la Casa Blanca y decidió retirar a su país del bloque, partieron las negociaciones para llegar a a un nuevo tipo de convenio.
- Cuchillos de obsidiana de la Edad de Piedra aún son utilizados en cirugías
- El vato de uRADMonitor visitó el Mobile World Congress y lo reportó en su blog: uRADMonitor at #MWC18
WTF de la semana
El WTF de la semana lo lleva el periódico The Independent de Inglaterra que reporta un incidente en una librería de Berkley, California:
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