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Fred Delventhal

Nature Works Everywhere - 5 views

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    Nature Works Everywhere gives teachers, students and families everything they need to start exploring and understanding nature's fantastic factory - videos, interactive games, and interactive lesson plans that align to standards.
Duane Sharrock

Medical devices powered by the ear itself - MIT News Office - 1 views

  • Health Sciences and Technology (HST) demonstrate for the first time that this battery could power implantable electronic devices without impairing hearing.
  • The devices could monitor biological activity in the ears of people with hearing or balance impairments, or responses to therapies. Eventually, they might even deliver therapies themselves
  • “In the past, people have thought that the space where the high potential is located is inaccessible for implantable devices, because potentially it’s very dangerous if you encroach on it,” Stankovic says. “We have known for 60 years that this battery exists and that it’s really important for normal hearing, but nobody has attempted to use this battery to power useful electronics.”
  • ...5 more annotations...
  • The ear converts a mechanical force — the vibration of the eardrum — into an electrochemical signal that can be processed by the brain; the biological battery is the source of that signal’s current. Located in the part of the ear called the cochlea, the battery chamber is divided by a membrane, some of whose cells are specialized to pump ions. An imbalance of potassium and sodium ions on opposite sides of the membrane, together with the particular arrangement of the pumps, creates an electrical voltage.
  • Low-power chips, however, are precisely the area of expertise of Anantha Chandrakasan’s group at MTL
  • The frequency of the signal was thus itself an indication of the electrochemical properties of the inner ear.
  • in cochlear implants, diagnostics and implantable hearing aids. “The fact that you can generate the power for a low voltage from the cochlea itself raises the possibility of using that as a power source to drive a cochlear implant,” Megerian says. “Imagine if we were able to measure that voltage in various disease states. There would potentially be a diagnostic algorithm for aberrations in that electrical output.”
  • “I’m not ready to say that the present iteration of this technology is ready,” Megerian cautions. But he adds that, “If we could tap into the natural power source of the cochlea, it could potentially be a driver behind the amplification technology of the future.”
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    "For the first time, researchers power an implantable electronic device using an electrical potential - a natural battery - deep in the inner ear."
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    "All of D-Lab's classes assess the needs of people in less-privileged communities around the world, examining innovations in technology, education or communications that might address those needs. The classes then seek ways to spread word of these solutions - and in some cases, to spur the creation of organizations to help disseminate them. Specific projects have focused on improved wheelchairs and prosthetics; water and sanitation systems; and recycling waste to produce useful products, including charcoal fuel made from agricultural waste."
Duane Sharrock

minecraftinschool [licensed for non-commercial use only] / FrontPage - 6 views

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    This wiki is devoted to hosting ideas, lessons, implementation strategies and more related to using the game, Minecraft in a school setting. Whether you use it in a computer/gaming club, as part of your regular curricular instruction, or even at home with your own children, Minecraft's simple yet scalable "sandbox" virtual environment can be an excellent tool for engaging student learning. The open-ended nature of the game lends it to application in a variety of subject areas. Game-based learning, virtual worlds, and simulations are emerging tools for reaching our learners. That's why this wiki was created. Are you an educator who also plays Minecraft? Perhaps you're considering using the game in your school or district. Do you have ideas about how Minecraft could enrich your teaching while providing a fun and exciting game world for your students? Then join us and share those ideas! This is an opportunity for crowd-sourced lesson building! -Lucas Gillispie, Instructional Technology Coordinator, Pender County Schools, NC
David Wetzel

6 Tips and Tricks for Using Interactive White Boards - 19 views

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    Interactive whiteboards (IWB) allow science and math teachers to teach multi-sensory lessons, seamlessly jumping from one type of media to another. Interactive science or math lessons can easily integrate text, sound, video, and graphics based on the tactile nature of the IWB.
Ako Z°om

Welcome to the new Sodaplay | sodaplay.com - 0 views

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    strangly not physic engine but so near... more online
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    may be to play on forces and natural responses .
Allison Kipta

Green Maps Around the World | Green Map System - 0 views

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    Green Map System energizes a diverse global movement of local mapmaking teams charting their community's natural, cultural and green living resources with our award-winning universal icons and adaptable multi-lingual resources. Explore hundreds of perspective-changing Green Maps created by local Map teams in 50 countries. Take part and support us as we chart a sustainable future!
Lisa Winebrenner

TPACK 101 | Dr Matthew J. Koehler - 8 views

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    Technological Pedagogical Content Knowledge (TPACK), builds on Shulman's idea of PCK, and attempts to capture some of the essential qualities of knowledge required by teachers for technology integration in their teaching, while addressing the complex, multifaceted and situated nature of teacher knowledge.
David Wetzel

How to Integrate Podcasting into Science and Math Classes - 14 views

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    Most of today's students either own or use iPods, iPod Touches, MP3 Players, and computers everyday. These digital tools provide a natural strategy to support student learning - Podcasts!
Fred Delventhal

The Kid Should See This. - 21 views

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    The Kid Should See This. There's just so much science, nature, music, arts, technology, storytelling and assorted good stuff out there that my kids (and maybe your kids) haven't seen. It's most likely not stuff that was made for them... But we don't underestimate kids around here.
Michelle DeSilva

Smithsonian National Museum of Natural History Virtual Tour - 8 views

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    The comprehensive virtual tour allows the visitor to take a virtual, self-guided, room-by-room walking tour of the whole museum. The visitor can navigate from room to room either by using a floor map or by following blue arrow links connecting the rooms. Camera icons indicate hotspots where the visitor can get a close-up on a particular object or exhibit panel.
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    The comprehensive virtual tour allows the visitor to take a virtual, self-guided, room-by-room walking tour of the whole museum. The visitor can navigate from room to room either by using a floor map or by following blue arrow links connecting the rooms. Camera icons indicate hotspots where the visitor can get a close-up on a particular object or exhibit panel.
Rudy Garns

Of persons, robots, aliens and humans - 0 views

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    "It is common parlance to equate the words 'person' with 'human'. That is perhaps because of all the creatures we know, we humans are those with the most obvious claim to personhood. But, what actually is a 'person'? We know that a person is a moral entity - someone, rather than something, but that just requires us to define a 'moral entity', so begs the question. This is a very vital question these days, as it relates to such issues as human embryo research, euthanasia, human genetic engineering and cloning, among others." (Human Enhancement and Biopolitics)
Joshua Sherk

National Museum of Natural Science:::Welcome::: - 0 views

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    informal and personalized learning equipped with Internet-ready wireless handheld devices.
Kate Olson

Read The Words - convert text to audio - 0 views

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    reads any text, you can upload MS Word, PDF, HTML, website address, choose from 15 readers, english, spanish, french
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    I've tried this out several which ways and personally found it to be a weak product. It just doesn't even sound close to natural, but I think they'll eventually get there.
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