TWiT Throwback (Audio)

TWiT Tech Podcasts: Audio
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Dig into the TWiT.tv archives and enjoy episodes from ten years ago. It's a tech time machine! Please note that these episodes are from ten years ago, so URLs, products, and other information may be very outdated. Sponsor codes and offers may no longer be valid.

  1. 15/03/2016

    Tech News Today 1469: Drone Racing on the Information Superhighway

    Microsoft turns to Minecraft as a playground for AI, the Xbox One is opened up to cross-platform play, a teenager shows us why drone racing is the next big future sport, micro-bots could tow your car for you in a pinch, and more. Hosts: Megan Morrone and Jason Howell Guests: Nate Swanner and Mike Murphy Download or subscribe to this show at https://twit.tv/shows/tech-news-today. Thanks to CacheFly for the bandwidth for this show. Sponsors: prosper.com/tnt wealthfront.com/tnt Scorebig.com promo code: TNT

    43 min

  2. 14/03/2016

    Know How... 194: Raspberry Pi Day!

    Build your own Raspberry Pi Security Cam, how to install the official Raspberry Pi 7" touchscreen, and learn the math for how much battery you'll need to power your next project.Build Your Own Security Camera Parts Needed: Raspberry Pi Model B Revision 2.0 (512MB) Micro SD card 8GB or higher Webcam Logitech HD Webcam C520 Usb with external Power Supply Setting up RaspPi Prepare / Format your SD Card Download Raspbian Jessie Lite Download WinDisk Imager (Or image writer for your OS) Insert Card and Boot up Pi Find your IP - ifconfig Enable SSH - sudo raspi-config Set Up Motion - sudo apt-get update - sudo apt-get upgrade Install Motion - sudo apt-get install motion Check if Raspberry Pi sees webcam - lsusb You should see the webcam pop up on the list of USB devices Now to Configure Motion - sudo nano /etc/motion/motion.conf In case you're using a RasPi 1 or want to make sure you can get your camera working properly; - output_pictures off - ffmpeg_output_movies off - stream_maxrate 30 - stream_localhost off "ctrl x" to save. Set Motion to begin at startup - sudo nano /etc/default/motion - start_motion_daemon=yes Start and Stop Motion - sudo service motion start - sudo service motion stop Done!!! How long will my battery last? "I'm trying to figure out the battery life for my lighting project, and I'm hoping you guys can help me out... I have a Lohas 100 watt LED chip, which is being powered by a 5200 mAh 30C lipo. I used an LM2577 power converter to get from ~12v to 35v. While simply knowing the answer would be nice, I'd really like to know how the math works, so I can do it myself in the future." -- 52Degrees Watt: Unit of Energy per time Volt: Unit of Electrical Potential Amp: Unit of Electrical Current If you were to think of Volts and Amps in terms of a wave, how high a wave is would be the voltage, and how BIG, or how much water was IN the wave would be the Amperage Together, how HIGH and how BIG the wave is determines how much ENERGY the wave can impart over time. Let's use my favorite equation: "West Virgina" or "Watts = volts x amps" This is a FANTASTIC relationship for us engineers, because it means we can play with voltage and current to get the amount of wattage that we need for an application Example: Let's take a 100 watt bulb I need 100 energy units (watts) over the course of an hour (Watt/Hour) to keep it lit. Assuming that the bulb can handle a variable range of voltage and current, there are several ways I can supply that power: I can provide high voltage and low current (i.e. 100 volts & 1 amp) I can provide low voltage and high current (i.e. 1 volt & 100 amps) I can provide something in between (i.e. 10 volts & 10 amps) All of these scenarios will give me 100 units of power (watt) over the course of an hour (watt-hour) Ok... now to HIS question: He was a 100Watt/Hour LED He has 5300mAh 3S 30C battery So Let's do the Math! The Battery has 5300mAh of CAPACITY at 11.1 volts (12volts) If we multiply 5.3Ah (that's 5300mAh) by 11.1 volts, we get 58.83Watt/Hours of capacity. This means if we were to pull 58.83 watts of power, the battery would be COMPLETELY drained in an hour. HOWEVER, LiPo batteries have a "discharge rating" (in his case, 30C) This determines the MAX current at which you can pull power from the pack. 30c X Let These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/194 Hosts: Fr. Robert Ballecer, SJ and Bryan Burnett Sponsors: getyounity.com/knowhow Ring.com/KNOWHOW

    54 min

  3. 14/03/2016

    iOS Today 288: Smart Sports Bra and Activity Trackers

    Megan and Leo shows off their favorite activity trackers. Including a smart bra from OMsignal, Apple Watch, Microsoft Band, Fitbit Surge, Fitbit Blaze, and a fitness app for your Apple TV. Hosts: Leo Laporte and Megan Morrone Download or subscribe to this show at https://twit.tv/shows/ios-today. Thanks to CacheFly for the bandwidth for this show. Sponsors: texture.com/ios audible.com/iostoday or text iostoday to 500-500 squarespace.com - offer code: IOSTODAY

    1h 29m

  4. 14/03/2016

    Triangulation 241: Sprint

    Designer Jake Knapp created the five-day sprint process at Google, a unique formula for solving tough problems, proven at more than a hundred companies. Host: Leo Laporte Guest: Jake Knapp Download or subscribe to this show at https://twit.tv/shows/triangulation. Thanks to CacheFly for the bandwidth for this show. Sponsors: audiblepodcast.com/triangulation Amazon.com/TWITRX digitalocean.com - promo code: TRIANGULATION

    1h 18m

  5. 14/03/2016

    The Tech Guy 1270: Sunday, March 13, 2016

    Protecting your business against ransomware, what apps to get for iPhone, printers with accessibility, best dash cams, upgrading an older Mac to OS X El Capitan, and is Microsoft automatically upgrading users to Windows 10? Host: Leo Laporte Guest: Anthony Tortoriello Download or subscribe to this show at https://twit.tv/shows/the-tech-guy. Bandwidth for The Tech Guy podcast is provided by CacheFly. Sponsors: ziprecruiter.com/techguy Epson.com/ecotankleo prosper.com/techguy

    2h 18m

  6. 13/03/2016

    This Week in Tech 553: Android Nutroll

    Leo Laporte, David Pogue, Mark Milian, and Nathan Olivarez-Giles discuss the big tech news stories of the week including President Obama's encryption speech at SXSW, AlphaGo leads 3-1 against Lee Se-dol, Apple announcement rumors, Android N preview highlights, and more... Host: Leo Laporte Guests: Mark Milian, Nathan Olivarez-Giles, and David Pogue Download or subscribe to this show at https://twit.tv/shows/this-week-in-tech Bandwidth for This Week in Tech is provided by CacheFly. Sponsors: casper.com/twit1 - promo code: TWIT1 carbonite.com - offer code: TWIT harrys.com/twit www.stamps.com - promo code: TWIT

    2h 26m

  7. 13/03/2016

    The New Screen Savers 44: Obama Talks Encryption at #SXSW

    We chat with the president of the American Go Association live from Seoul South Korea. We pick the RAM for our Ultimate VR Gaming Machine. Watch a visit from the Blindfold Chess master and we connect with Brian Reich on Obama's talk on encryption straight from #SXSW. Hosts: Leo Laporte and Liberty Madison Guests: Brian Reich, Andy Okun, Megan Morrone, Iain Thomson, Ryan Shrout, Tamur Gareyev, and Dr. Jesse Rissman Producers: Tonya Hall, Karsten Bondy, and Jerry Wagley Technical Director: Bryan Burnett Editor: Bryan Burnett The New Screen Savers is available for download at https://twit.tv/shows/new-screen-savers. Thanks to CacheFly for bandwidth for this episode. Sponsors: BLUEAPRON.COM/TWIT braintreepayments.com/nss prosper.com/nss

    1h 42m

  8. 13/03/2016

    The Tech Guy 1269: Saturday, March 12, 2016

    President Obama's take on encryption, updating Google contacts on an old phone, buying your own cable modem, Spring break travel tips from Johnny Jet, and more of your calls! Host: Leo Laporte Guests: Scott Wilkinson, Johnny Jet, and Dick DeBartolo Download or subscribe to this show at https://twit.tv/shows/the-tech-guy. Bandwidth for The Tech Guy podcast is provided by CacheFly. Sponsors: naturebox.com/twit opticalcablesbycorning.com Epson.com/ecotankleo

    2h 14m
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About

Dig into the TWiT.tv archives and enjoy episodes from ten years ago. It's a tech time machine! Please note that these episodes are from ten years ago, so URLs, products, and other information may be very outdated. Sponsor codes and offers may no longer be valid.

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  • Channel
    TWiT Tech Podcasts: Audio
  • Creator
    TWiT
  • Episodes
    110
  • Rating
    Clean
  • Copyright
    © This work is licensed under a Creative Commons License - Attribution-NonCommercial-NoDerivatives 4.0 International - http://creativecommons.org/licenses/by-nc-nd/4.0/
  • Show Website
    TWiT Throwback (Audio)

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