Author Archives: Martin Horejsi

The Surefire FirePak: A Smartphone Science Studio Lighting Solution






As the smartphone camera gains an ever-more sophisticated role in the science classroom, the technical limits of phone photography become more apparent. Luckily a dose of strong light can overcome many problems as well as provide access to a world unseen by the human eye. But not just any light will work. The amount, color and frequency modulation […]

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The goTenna Off-Grid Communication Device: Take A “Cell Network” on your next Field Trip






Imagine co-leading a science field trip indoors in a large museum with questionable cell coverage, or outside and too far from the nearest cell tower. The goTenna system allows you to directly contact another goTenna equipped teacher using their smartphone independent of a cellular connection. The goTennas are their own communication network that runs between […]

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The Celestron Micro-Fi Wireless Digital Microscope: A Handful of Wow!






The term “wireless” does not so much describe what is, but instead what isn’t. And what isn’t is wires. What’s strange about many wireless technologies is there was never a wired version to begin with so describing the device by an absent feature that never was present in the first place can be confusing to […]

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The Carson HookUpz 2.0: The Missing Link Between Camera and Eyepiece






Over the years I have held digital cameras and phones up to the eyepieces of telescopes, spotting scopes, binoculars, and most often microscopes to take pictures, capture video, and stream imagery to projectors and TVs. In all cases the idea was sound and the optics were fine, but the execution needed work even when duct […]

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The Micro Phone Lens: A Tiny Solution to a Huge Problem






Other than computer code, the Micro Phone Lens just might be the lightest accessory you can add to your tablet or phone. Weighing in at a fraction of a gram, the tiny lens leverages the optical power of existing cameras on phones and tablets. And like a contact lens, its power is not measured in […]

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The Texas Instruments TI-Innovator Hub: A Magic Box to Code






From any perspective, the Texas Instruments TI-Innovator Hub is ready to take your students from never coded to coding confidence in just 10 magical minutes.






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The Vernier LabQuest Stream: The Absolute Hub of Discovery






“Stream” Nouns are useful, but verbs are educational. So when Vernier released their LabQuest Stream sensor interface into the wild, the familiar grey box quickly proved to be much more than just a powerful and innovative radio station that broadcasts up to five data channels via Bluetooth to any device that can listen, but truly a hub […]

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Vernier Turns Up The Pressure with the new Pressure Sensor 400






The new Vernier Pressure Sensor 400 is one small step up in price, but one giant leap in performance. With an exceptional operational temperature range, and secure metal fittings makes the Vernier Pressure Sensor 400 is a serious tool for high school and college experiments in chemistry, biology, physics, and environmental science. The earlier version of […]

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First Look: Hands on with the Pasco Wireless Temperature Sensor






The humble electronic thermometer is often the gateway technology into the world of digital data collection, and Pasco Scientific just made that tech much more affordable. And Bluetooth to boot! Whether measuring thermal motion at -40 degrees C which happens to be about the freezing point of Mercury, to 125 degrees C which happens to be […]

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The iPad Pro: Hands-on Observations






The iPad Pro is, at its core, a larger iPad. Larger screen. Larger speakers (four of them), larger keyboard, larger processor, and larger resolution. But so what? Well, I guess it depends on whether or not you believe in magic! I’ve been with the iPad since the first one back in spring of 2010. The original […]

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