Science with a Smartphone: Decibel Meter

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Editor’s Note: We have strived to maintain accessibility in our Bring Science Home activities by limiting the required technology. Science with a Smartphone: Decibel Meter - Scientific American www.scientificamerican.com /article/ science -with-a... Science with a Smartphone: Decibel Meter. A sound science activity from Science Buddies ... had to buy a stand-alone decibel meter—a device with a microphone and a screen that would display the ... We recognize technology is now more widely available than it was when we began this’series in 2011 and that it can add value to scientific exploration. Science with a Smartphone: Decibel Meter Virtual Studies ... cyberian.pk/ science-with-a-smartphone-decibel -meter The decibel scale is a little unusual because it is logarithmic rather than linear. What does that mean? For every increase of 10 dB , the loudness of the sound doubles. For example, a 30 dB sound is twice as loud as a 20 dB sound. A 40 dB sound is twice as loud as a 30 dB sound, and four times as loud as a 20 dB sound, etcetera. This is our first activity that requires the use of a smartphone or tablet. Science with a Smartphone: Decibel Meter (Scientific American) snewsi.com/id/19188034453 Science with a Smartphone: Decibel Meter. March 14, 2019 - 1:55 AM Scientific American - Ben Finio. Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. Please let us know what you think! E-mail [email protected] with feedback about the use of technology in this’and future’Bring Science Home activities.

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Introduction Did you know that you can use a smartphone as a scientific instrument to explore the world around you? Smartphones contain many built-in electronic sensors that can measure phenomena such as sound, light, motion and more! In this activity you’ll use a phone’s microphone to examine the loudness of different sounds in your environment. So How Accurate Are These Smartphone Sound Measurement ... blogs.cdc.gov/niosh- science -blog/2014/04/09/sound-apps The use of smartphone sound measurement apps can have a tremendous and far-reaching impact in the areas of noise research and noise control in the workplace as every smartphone can be potentially turned into a dosimeter or a sound level meter [Maisonneuve et al., 2010; Williams and Sukara, 2013]. However, in order for smartphone apps to gain ... How quiet is a library? How loud is that truck roaring by? Try this activity to find out!

  • Publisher: Scientific American
  • Author: Science Buddies Ben Finio
  • Twitter: @sciam
  • Citation: Web link (Read More)

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Building a Sensor Hub based on Raspberry Pi

Scientists rely on sensors to probe things that are not directly perceivable by human senses and thereby advance science. Stories by Science Buddies - Scientific American www.scientificamerican.com /author/ science-buddies Stories by Science Buddies. Physics. ... Science with a Smartphone: Decibel Meter. A sound science activity from Science Buddies. March 14, 2019 — Science Buddies and Ben Finio. Chemistry. If you are interested in doing some science experiments, you can now build your own sensor hub using the Raspberry Pi platform with a relatively small budget and effort’thanks to the versatility of the incredible platform and the maturity of the supporting community. In this article, I show how to build a sensor hub using a number of breakout boards and their open-source driver code that I found online. I also show the results of some simple but intriguing experiments that you can immediately do with some of these sensors. None of these experiments require complex setups or expensive materials, but they show the true power of science experimentation unleashed by sensors that extend our perception.

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  • Publisher: Medium
  • Date: 2019-03-11T04:16:01.156Z
  • Author: Charles Xie
  • Twitter: @Medium
  • Citation: Web link (Read More)

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Seychelles science mission chases a wayward drone, in vain

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The manned submersible surfaces after dark after a failed mission to recover a stranded ROV (Remotely Operated Vehicle), in the Indian Ocean near the Seychelles, Wednesday March 13, 2019. The previous day, an accident severed the cable connecting the drone to the mother-ship of the British-based Nekton mission. The camera-carrying ROV is a vital image-gathering tool that can go deeper than the submersibles. (AP Photo/David Keyton)

  • Publisher: Santa Maria Times
  • Author: JERRY HARMER and DAVID KEYTON Associated Press
  • Twitter: @SantaMariaTimes
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