Podcast Publish Fails

I think I am getting a bit blasé about publishing, two fails in two weeks. 😬

When I create a Podcast Post I have to do three main jobs for the podcast to release properly:

  1. Upload and attach the mp3
  2. Tell the Post when to go live (5:00am on the next term-time Thursday – an arbitrary choice that I have stuck to)
  3. Tell the Post it is a Podcast Episode (rather than a blog etc.)

Last week I failed at #2, this week I failed with #3. Both cases were because I changed the auto-tweet text. For some reason you have to completely start again from scratch if you want to change the release auto-tweet. This means copying and pasting all the content in to a new page, usually late at night, usually a bit frustrated…

I am making a checklist now. #1 is

“Check the damn tweet doesn’t have a spelling mistake!”

Enough procrastination. I have a pile of lab books to mark. 😖

Send Message
Reset Form

27. Ways to teach… Waves

Thomas, Robin and Patrick introduce and discuss many ways of teaching waves that have been shared by the listener.

Timestamps

  • Physics in the News – Blue Origin @ 01:07
  • Ways to teach… Waves @ 01:50
    • Cara Wood and a piece of string @ 02:20
    • Slinkys @ 06:50
    • Making many nodes @ 10:54
    • Salt Pendulum @ 13:47
    • Acetates @ 14:58
      • Jed’s wave visualisation experiment @ 16:48
    • How to remember the difference between Transverse and longitudinal @ 18:59
    • Alom Shaha and the Jelly Baby Wave Machine @ 20:17
    • Standing waves @ 24:51
    • Ruben’s Tube and Kundts Tube @ 28:01
    • Showing colour mixing and projector polarisation @ 30:43
    • Young’s slits – lab scale with sound @ 32:47
    • PhEt @ 33:38
    • Mexican Wave @ 34:20
    • Tell us misconceptions! #tptpmisconception @ 35:25
    • Who won Alom Shaha’s Book? @ 37:43

Summary

Patrick, Thomas and Robin get together to tackle ways to teach waves but not until they have touched on Jeff Bezos’ bid for extra-terrestrial adventure: Blue Origin.

Cara Wood was first up sharing tips for teaching waves.  She introduces waves by simply getting students to pluck a piece of string held in their teeth, so that they can see, feel and hear vibrations, experience amplitude and frequency, and discuss waves travelling through solids and gases.  Patrick loved this: really giving a tactile encounter with waves and their source.  Robin made the tenuous link to cochlear implants.  Very similar is the metal coat hanger demo.

“You can’t beat a Slinky” according to Dan Toomey – thanks Dan!  Patrick put us onto “Snakey springs” on amazon for a mighty £27, but we found them cheaper with a bit of persistence: £5.75 at Select School Supplies. Snakey Springs help to avoid Slinky tangles when demo-ing transverse waves.  Thanks to Graham Thomson for the tip of setting a ball next to the slinky spring so that it gets struck as the wave passes and you can thus link frequency and energy.  Graham pointed out the rich discussions you can have on time period, frequency, wave speed and wavelength all with the Slinky.  Thomas was really impressed with Frank Noschese’s video using paper cups next to the Slinky to demonstrate constructive and destructive interference.  Robin recalled a similar method to this to demonstrate the vibrational link to sound waves.

Frank Noschese masters the Slinky

Thanks to Dr Joshua Griffiths and Graham Thompson who talked about challenging students to produce features on ropes and Slinkies, such as increasing numbers of standing waves and purposely frustrating by asking for high frequency, long-wavelength waves.  This gives a good discussion of why it can’t be done!

Thanks to all the other folk too numerous to mention, who also pointed us towards the Slinky as a ‘must-have’ for teaching waves.

Thanks to Dan Toomey for the salt / sand pendulum video.  Thomas was delighted to report he had already done this and Patrick was keen to have a go.

John Hamilton’s use of acetate wave traces to demonstrate superposition makes a tough concept much easier for students to visualise – thanks John!  Jed Marshall uses acetates to get across the tricky idea of wavefronts, alongside his ripple tank that students can struggle with and he kindly supplied a booklet to show how it worked. (photos below).

How’s this for a handy mnemonic for longitudinal vs. transverse?  Thanks to Chris Beason and K Physics 1.

Alom Shaha joined us for his PIM and he described his jelly baby wave machine. The video says it all: easy to make, and as Alom says, transformative in the teaching of waves! Reflection, refraction, amplitude and frequency – all easily demo-ed quickly and cheaply. Despite Jelly Babies being lost in translation, Patrick endorsed the machine and he still uses it, although the Gummy Bears may be past their sell-by date!

Signal generators, strings and vibration generators always go over well, particularly in conjunction with a stroboscope and Patrick described how he challenges students, not least through atmospheric use of Pink Floyd music! Don’t forget your Rubens tube too – it really helps discussing pressure differentials in sound waves. And if anyone has any tips to get the Kundt’s tube to work, let us know!

Paul from @PlanetReynolds on Twitter had a lovely dichromatic crystals demo which has “Wow factor” and his toppling dominos is a great way of demonstrating density’s effect on wave transmission. Just search on eBay for “optical glass cube” and “100 led finger lights“.

Thanks again to Dan Toomey for his tip on using superposition with loudspeakers, and don’t forget PhET, ripple tanks and “stadium waves”!

…and finally! Well done to Frank Noschese who we picked from the expensively engineered randomised name selection device. Frank will receive a personally signed copy of Alom Shaha’s Recipes for Wonder.

HAVE A GREAT HALF TERM!!

Join in!

Please share ideas or successes – or indeed questions – on our Facebook Page: https://fb.me/physicstp .  You can also message us via our website contact form at the.physicsteachingpodcast.com, Twitter @physicstp, email using  the address given in the podcast (if we remember) or by leaving a voice memo using WhatsApp or Telegram to the phone number in our Twitter profile, +44 7898 814716 (don’t call the number, nobody will answer, just hold down the microphone icon and speak your message). Don’t forget to tell us your name because we may use your audio in a future episode. Please do leave a voice memo: Thomas thinks nobody loves him.

The music we use remains One legged equilibrist polka by Circus Homunculus.

Send Message
Reset Form
A Swiss Roll

26. Finding Physics Teaching at Fifty-Three

Thomas, Robin and Patrick Kaplo hear from Jonathan Shaw, a late career change to Physics teaching who is in his NQT year at 53 years old. Jonathan also challenges the team to select the most important equipment for a new physics department.

Timestamps

  • Vacuum cannon update @ 00:39
  • Ways to teach… Waves reminder @ 01:04
  • Physics in the News: Coal Free Electricity in the UK @ 02:39
  • Energy storage with cars @ 03:56
  • Jonathan Shaw, NQT @ 04:47
  • After the interview discussion @ 20:40
    • Swiss Roll @ 20:44
  • Which equipment should a Physics department have? @ 29:35

Summary

Thomas reminds us that the Vacuum Cannon can once more be ordered in the shop (for delivery in early June). Physics In The News leads to a chat about the UK’s coal-free week and the idea of load balancing with electric cars. This week’s guest is Jonathan Shaw, a successful businessman and entrepreneur who found his true calling as a Physics teacher late in life. What he says challenges Patrick, Thomas and Robin to justify practical work and also to come up with the equipment that a Physics department should have if starting from scratch. Robin gives his top tips for teaching other teachers to use oscilloscopes but is sceptical about a virtual oscilloscope but Thomas recommends the one at academo.org. Share your list with @physicstp on twitter with the hash tag #tptpequipment.

Ways to teach… Waves

Episode 27 will be all about ways to teach Waves. How do you do it and what works best for you? You have until Saturday night to give us your ideas, and one of them will win Alom Shaha’s excellent book Recipes for Wonder.

Please share ideas or successes – or indeed questions – on our Facebook Page: https://fb.me/physicstp .  You can also message us via our website contact form at the.physicsteachingpodcast.com, Twitter @physicstp, email using  the address given in the podcast (if we remember) or by leaving a voice memo using WhatsApp or Telegram to the phone number in our Twitter profile, +44 7898 814716 (don’t call the number, nobody will answer, just hold down the microphone icon and speak your message). Don’t forget to tell us your name because we may use your audio in a future episode. Please do leave a voice memo: Thomas thinks nobody loves him.

The music we use remains One legged equilibrist polka by Circus Homunculus.

Send Message
Reset Form

25. Fusion, Triangular Teaching and Avoiding Dead Leaves

Thomas, Robin and Patrick Kaplo discuss the re-release of the vacuum cannon, the ITER fusion project, Prof W Brian Lane tells us his PIM and James De Winter talks about avoiding “Plugging and Chugging”.

Timestamps

  • Welcome back Patrick Kaplo @ 00:37
  • The Vacuum Cannon is back @ 01:10
  • Physics in the news: ITER and fusion @ 02:07
  • Prof. W Brian Lane and his Spring Lab @ 04:23
  • Differences between US and UK systems @ 13:21
  • James De Winter and Maths in Physics @ 20:24
  • Please give us some Waves teaching tips @ 27:31

Summary

Patrick Kaplo joins the team once more. Thomas announces that the Vacuum Cannon can once more be ordered in the shop (for delivery in early June). Physics In The News leads to a chat about Fusion at ITER and how it is always 25 years away. Thomas introduces Prof. W Brian Lane who first appeared in Episode 20 (Ways to teach… Displacement, Velocity and Acceleration). Discussing it, Thomas and Patrick get a bit sidetracked talking about our different systems before Robin steers them back to the idea of teaching with a triple whammy of Theory, Simulation and Practical. Thomas then plays a short section of a chat Robin had with James De Winter about the place of Maths in Physics and avoiding “Plugging and Chugging”.

Patrick Kaplo modelling the t-shirt
Patrick Kaplo rocks the retro tptp look.

Ways to teach… Waves

Episode 27 (assuming we make it) will be all about ways to teach Waves. How do you do it and what works best for you?

Please share ideas or successes – or indeed questions – on our Facebook Page: https://fb.me/physicstp .  You can also message us via our website contact form at the.physicsteachingpodcast.com, Twitter @physicstp, email using  the address given in the podcast (if we remember) or by leaving a voice memo using WhatsApp or Telegram to the phone number in our Twitter profile, +44 7898 814716 (don’t call the number, nobody will answer, just hold down the microphone icon and speak your message). Don’t forget to tell us your name because we may use your audio in a future episode. Please do leave a voice memo: Thomas thinks nobody loves him.

The music we use remains One legged equilibrist polka by Circus Homunculus.

Patrick’s theme tune is from Hail to the Chief Bluegrass Banjo by Tom Adams from BanjoNews.com under Fair Use.

Send Message
Reset Form

24. YouTuber Lewis Matheson and A Level Physics On-Line

Lewis Matheson tells how he gave up classroom teaching to become a YouTuber with his channel A-Level Physics On-Line.

Timestamps

  • Ways to Teach… Waves reminder and new competition @ 01:18
  • Physics in the News: Accelerating Universe Expansion @ 02:31
  • Lewis Matheson interview @ 05:56
  • Post Interview chat @ 21:49

Summary

Physics in the news this week is the improvement of the evidence that the expansion of the Universe is accelerating. This leads to discussion of how distant galaxies are going to disappear over time, but also the Infrared Catastrophe. The main interview is with Lewis Matheson, ex-Physics teacher who is now a full-time podcaster with his website A Level Physics On-Line and its related YouTube Channels.

Join in!

Please share ideas or successes – or indeed questions – on our Facebook Page: https://fb.me/physicstp .  You can also message us via our website contact form at the.physicsteachingpodcast.com, Twitter @physicstp, email using  the address given in the podcast (if we remember) or by leaving a voice memo using WhatsApp or Telegram to the phone number in our Twitter profile, +44 7898 814716 (don’t call the number, nobody will answer, just hold down the microphone icon and speak your message). Don’t forget to tell us your name because we may use your audio in a future episode.

The music we use remains One legged equilibrist polka by Circus Homunculus.

Send Message
Reset Form