“Feed Us On Fetus: Plans for Melanated Hood be Parent Free” Burnt Reynoldz Official
(The version on Rapchat has a music video with it. Ill link if anyone asks.i hotta grab some food at the moment.)
https://soundcloud.app.goo.gl/zbCgHBdp4AQ8tVB67

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“Feed Us On Fetus: Plans for Melanated Hood be Parent Free” Burnt Reynoldz Official
(The version on Rapchat has a music video with it. Ill link if anyone asks.i hotta grab some food at the moment.)
https://soundcloud.app.goo.gl/zbCgHBdp4AQ8tVB67

Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch • No registration required • HD streaming
Development of a stretchable vibration-powered device using a liquid electret
NIMS and AIST developed a liquid electret material capable of semi-permanently retaining static electricity. They subsequently combined this material with soft electrodes to create the first bendable, stretchable vibration-powered device in the world. Because this device is highly deformable and capable of converting very subtle vibrations into electrical signals, it may be applicable to the development of healthcare-devices, such as self-powered heartbeat and pulse sensors.
An electret material capable of semi-permanently retaining an electrical charge can generate voltage as its distance to the associated electrode changes. Because of this property, electret materials may be applicable to the development of vibration-powered (piezoelectric) devices and sensors capable of converting externally applied vibration and pressure into electrical signals. However, conventional electret materials are solid or in film form, and as such are inflexible and incapable of deformation into complex shapes, making them unsuitable for use in the development of wearable heartbeat and pulse sensors. A great deal of interest therefore exists in the development of bendable and stretchable vibration-powered devices that can be processed into a variety of shapes and used as such sensors.
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microphone amp i built for clippy em272 mics.. sounds great
I think, I will never get tired trying out new microphone circuits. This one will be especially interesting to me, as it is our first OpAmp based microphone circuit. This one will be an omni mic with an electret capsule. #electret #electretmicrophone #electretmic #condensormic #condensorcapsule #kondensatormikrofon #groupdiy #gearslutz #mikrofonentwicklung #soundandmusicproduction #electronicsengineering #sounddesign #proaudio #xlr #phantompower #tonstudio #tontechnik #opamp #burrbrown #buschmicrophones https://www.instagram.com/p/CQnXuNthCEi/?utm_medium=tumblr
Escucha, ve y calla
Por: Lina Cordoba, David Ruiz, Alejandro Urrego (G5)
¿Nunca te has preguntado porque te gusta un lugar en especifico? De pronto por su olor, por la vista, o quizás… por el sonido que emite.
A continuación vamos a mostrarte un total de 6 grabaciones. Todas ellas grabadas con micrófonos tipo electret, donde te llevaremos a conocer diferentes espacios, cada uno con su sonido característico, para que de esta forma, nos acompañes a encontrar la esencia de estos lugares.
¡A calentar motores!
Por: Lina Cordoba
La primer locación que vamos a mostrarte, es un pequeño y viejo puente peatonal, ubicado sobre una calle bastante transitada en Tocancipá, Cundinamarca.
Lo que se logró capturar en este tipo de ubicación, fue un ambiente bastante ruidoso. Generado por el paso de los vehículos automotores.
Al ser un lugar tan amplio, hubo mucha influencia del viento en las primeras grabaciones. Sin embargo, con varios intentos y ciertas adaptaciones al micrófono, se obtuvo el siguiente audio.
Escuchémoslo juntos, y descubramos la esencia de este lugar.
https://freesound.org/people/eldiariosonoro_/sounds/538883/
Ahora, un poco de calma
Por: Lina Cordoba
Acabas de escuchar un ambiente bastante ruidoso, movámonos al otro extremo, en la comodidad de nuestros hogares. En este caso, quiero que conozcas mi habitación.
Como puedes ver, es una habitación bastante pequeña pero acogedora, con piso alfombrado y una ventana con referencia al parqueadero de un conjunto residencial.
Ahora, al igual que en el caso anterior, acompáñanos a escuchar la esencia de esta ubicación, en donde si te concentras lo suficiente, podrás darte cuenta que existe algo más que silencio cuando no hay objetos emitiendo ruido.
https://freesound.org/people/eldiariosonoro_/sounds/538887/
¡Detente! Pasa la vida en calma
Por: David Ruiz
Cuando te dicen la palabra parque, ¿Qué sonidos son los primeros que se te viene a la cabeza? Me imagino que estás pensando en columpios rechinando, niños jugando y gritando a más no poder. Sin embargo, recuerda que nos encontramos en época de pandemia, ahora bien, ¿Te has preguntado como suena un parque con ausencia de personas?
Ya que lo pensaste, acompáñanos a escuchar lo captado en este lugar y descubre su esencia en tiempos de pandemia.
https://freesound.org/people/eldiariosonoro_/sounds/538884/
Oikomania: ¡Quiero estar en mi casa!
Por: David Ruiz
Debido a la cuarentena estricta que se dio por un largo tiempo en Bogotá, las familias colombianas se concentraron única y exclusivamente en sus hogares. En este caso, vamos a escuchar uno de los lugares más importantes dentro de esta: La sala.
Aquella sala colombiana en donde los integrantes de la familia se reúnen a comer, hablar, y pasar el rato lo mas amenamente posible. Sin embargo, ¿Alguna vez te has puesto a pensar como sonaría este lugar sin todos estos factores?.
Ha llegado el momento de descubrirlo, acompáñanos a escuchar esta grabación, en donde se consiguió el roomtone especifico, de una sala comedor colombiana, en un apartamento de Bogotá.
https://freesound.org/people/eldiariosonoro_/sounds/538886/
La nueva vida “Fitness”
Por: Alejandro Urrego
¿Has vuelto a hacer deporte en esta pandemia? Lo más probable es que tu respuesta haya sido no. En este caso ¿Has pensado como están en estos momentos los espacios de recreación deportiva?
Mira la imagen que te mostraremos a continuación, ¿Qué crees que se captó en esta grabación?. Ten en cuenta que es una cancha deportiva ubicada en el centro de dos conjuntos residenciales, y que fue grabado a altas horas de la mañana.
Ya que lograste hacerte una idea al respecto. Dale play a la grabación y verifica si lo que pensaste, estuvo en lo correcto.
https://freesound.org/people/eldiariosonoro_/sounds/538885/
¿Aun sigues pensando que el silencio no se escucha?
Por: Alejandro Urrego
Piensa en un lugar pequeño, con paredes y piso de baldosa. Un lugar donde milagrosamente suenas bien cantando… o al menos tu crees eso. ¿Qué lugar se te vino a la mente?.
Tu baño, obviamente. Aquel lugar tan fácil de reconocer a través de los sonidos generados por los objetos en su interior, ya sea la regadera, el lavamanos o el mismísimo inodoro.
Normalmente, todos los baños tienen las mismas características, por lo que debes de conocer el sonido característico de este lugar, cuando todo se encuentra quieto. Dirás entonces que es el silencio, déjame decirte, que estas equivocado.
Vamos a demostrártelo con el siguiente audio, en donde fue capturado el roomtone perteneciente a este baño en especifico. Después de escucharlo dime, ¿Realmente crees que es un silencio lo que escuchas?.
https://freesound.org/people/eldiariosonoro_/sounds/538882/
¿Como lo hicieron?
A continuación te dejaremos un MAKING OF de todas estas grabaciones, donde podras ver a mayor detalle, las descripciones de estos lugares y la ubicación de los micrófonos para estas capturas.

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The Important Role of Electret Electrostatic Treatment In Surgical Masks
#electret #electrostatic #treatment #surgical #masks #electrospinning
Since the outbreak of the new coronavirus, masks have become a necessity.The current fight against the new coronavirus outbreak is in a state of seesaw, and it is expected to take some time, and masks will be a hot item for some time to come.
During this period of time, the whole people also carried out a popular science on the knowledge of masks.Know what is called N95 mask, what is called surgical mask, know the mask is made by PP non-woven fabric......
Also know that in this case, normal gauze masks, even activated charcoal masks, are not effective against the virus.Because although cloth can block large particles of dust, but for less than a certain diameter can not stop.
A common surgical mask has a three-layer structure. When wearing the mask, the white side should be turned inwards and the side with the layering should be turned upward. Firstly, the two straps of the lower edge should be tied behind the neck and pulled tight to make the lower part of the mask reach the base of the chin.Pull up the upper edge of the mask, cover the mouth and nose with the mask, pull the belt behind the ear and tie it tightly to the head, do not tie it to the ear.Press the wire at the base of the nose above the mask with your index fingers on both hands to make it close to the skin of the nose. Then move your index fingers to the side to make the mask close to the skin of the face.These three layers of non-woven fabric have their own characteristics, the most outer layer, the most inner layer is the spunbonded non-woven fabric, can be done as a support, the blue part of waterproof, white part of better moisture absorption.The filter layer in the middle is melt-blown non-woven fabric, which is the most important layer. The fiber diameter of melt-blown layer is relatively thin, about 2 microns (diameter m), so it is only one tenth of the diameter of spun-bonded layer, which is crucial for preventing bacteria and blood penetration.Sometimes, of course, the number of layers will increase in order to increase the effect.The N95 mask has a similar structure, but the non-woven booker is heavier and thicker.And the N95 mask is pre-formed to fit the face shape better.
At first thought, a little strange, just like the dishcloth we use in the kitchen, always good with cotton, because the absorption of cotton cloth is good, and PP is plastic, plastic cloth to do dishcloth is always useless.Then why, PP do non-woven cloth, made into a mask, filtration effect so good?
When we were kids, we played games where we could suck up scraps of paper by rubbing a pen on our hair or clothes.Why is that?This is when the insulator generates static electricity during friction, allowing it to absorb other objects.
The reason for the good adsorption effect of surgical masks is that the non-woven fabric of the melt-blown layer is treated with static electricity, and the technology can keep the static electricity for a long time, which is electret static electricity.PP is an insulator and in plastics is a non-polar material that produces static electricity.
In 1976, j. Van Turnhout et al. made use of polypropylene film cut into small strips, and processed the charged strips into cringed state to form electret fibers, which were then made into cloth, which could be made into filter materials.These filter materials can not only use cloth mechanical filtration, but also use electrostatic physical adsorption, for the solid particles in the air, bacteria, viruses and other sundry filtration effect greatly improved.
At present, the main electret methods are electrospinning, corona discharge, triboelectric, thermal polarization, low energy electron beam bombardment and so on.Corona discharge method is a common electrostatic electret method.
The relationship between electret voltage and filtration efficiency has been studied using melt-blown non-woven fabrics.At present, the commonly used electret voltage is between 30 and 60KV.
By the way, masks are so tight these days that there are all kinds of ways to talk about reusing them online.Knowing the principle above, we know the method of recycling.First, you can't wash it with water or any other liquid.The new coronavirus is afraid of heat, and it will be over after 30 minutes at 56℃. You can add heat to the mask, but the temperature should not be too high.The melting point of PP is 160 ℃, deforming around 120℃, so it can be treated at 80-100℃ for a period of time, killing the virus.Some people say that in the microwave, PP materials are polar, microwave doesn't work, we have a lot of the microwave can use of lunch box, is PP), but does not guarantee that mask are metal or other polar materials, in the microwave will accident caused by the temperature rise (we heat the food in the microwave oven, it is because of material in the food are basically polar, under the high frequency microwave, polar material back and forth movement result in higher temperature to heat).Of course, it is not recommended to reuse too many times, because every time you use, static electricity will consume a part, consumed, electrostatic adsorption is not effective, filtration efficiency will be greatly reduced!
Development of a stretchable vibration-powered device using a liquid electret -- ScienceDaily
Development of a stretchable vibration-powered device using a liquid electret — ScienceDaily
NIMS and AIST developed a liquid electret material capable of semi-permanently retaining static electricity. They subsequently combined this material with soft electrodes to create the first bendable, stretchable vibration-powered device in the world. Because this device is highly deformable and capable of converting very subtle vibrations into electrical signals, it may be applicable to the…
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Not into Diamonds? Try this STAX SR-44 Electret Earspeaker system straight outta 1977! . . . #vintagetech #electret #sr44 #vintageelectronics #vintageaudio #vintageaudiogear #vintageelectrical #nonprofit #t1d #type1diabetes #curethriftshop #thrift #thrifted #thrifting (at Cure Thrift Shop) https://www.instagram.com/p/BttYp6eBwQs/?utm_source=ig_tumblr_share&igshid=1ndu7ko2v7r6s