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hookean.bsky.social
Dr Dan Jones
@hookean.bsky.social
2.7K followers 790 following 1.6K posts
Physics teacher
PhD in positrons long ago!
#ITeachPhysics
https://www.youtube.com/channel/UC4y8XUOkvJX7k0ixJM3HIEg
Posts Replies Media Videos
hookean.bsky.social
AI can make apps in a couple of minutes, which you might use for the rest of your career. This example took about 10 prompts in Gemini to create 🙂
#iTeachPhysics
#Science 🧪

drive.google.com/file/d/1aSRP...
shows a colour mixing app with various options
November 16, 2025 at 8:01 PM
hookean.bsky.social
Coin rotation in a magnetic field 🧲
#iTeachPhysics
#Science 🧪

youtube.com/shorts/WU6Hr...
Coins and a magnet #physics #explorephysics #physicsfun
YouTube video by Hookean Physics
youtube.com
November 14, 2025 at 2:03 PM
hookean.bsky.social
Dozens of great Eddy Current demos 🙂🧲
#iTeachPhysics
#Science 🧪

youtu.be/GxrMw-NvpVA
Eddy currents : Dozens of the best demonstrations #physics #physicsfun
YouTube video by Hookean Physics
youtu.be
November 13, 2025 at 6:49 PM
hookean.bsky.social
Simple friction demo
#iTeachPhysics
#Science 🧪
November 13, 2025 at 6:26 AM
hookean.bsky.social
Fossil fuel emissions rise again - but renewables boom offers hope for climate
#iTeachPhysics
#Science 🧪

www.bbc.co.uk/news/article...
Fossil fuel emissions rise again - but renewables boom offers hope for climate
Carbon emissions from burning fossil fuels are forecast to reach a new high in 2025 but could soon peak.
www.bbc.co.uk
November 13, 2025 at 6:17 AM
hookean.bsky.social
Bulb lit by plasma ball
#iTeachPhysics
#Science 🧪
www.youtube.com/shorts/MczHC...
Bulb lit by a plasma ball
YouTube video by Hookean Physics
www.youtube.com
November 9, 2025 at 5:12 PM
Reposted by Dr Dan Jones
hookean.bsky.social
Eddy current brake 🧲🙂
#iTeachPhysics
#Science 🧪
November 7, 2025 at 6:59 PM
hookean.bsky.social
Eddy current brake 🧲🙂
#iTeachPhysics
#Science 🧪
November 7, 2025 at 6:59 PM
hookean.bsky.social
The magnetic field of an electromagnet 🧲
#iTeachPhysics
#Science 🧪
November 5, 2025 at 6:43 AM
hookean.bsky.social
😊
#iTeachPhysics
#Science 🧪
November 2, 2025 at 10:46 PM
hookean.bsky.social
g is defined exactly as 9.80665 m/s/s 😊
#iTeachPhysics
#Science 🧪
November 2, 2025 at 10:41 PM
hookean.bsky.social
I was very sad to recently read of the death a few months ago of former IOP Deputy Chief Executive Rachel Youngman. We had lots of lovely chats and she will be very much missed.
#iTeachPhysics
November 1, 2025 at 7:39 PM
hookean.bsky.social
The benefits of irradiating food ☢️
#iTeachPhysics
#Science 🧪
November 1, 2025 at 7:36 PM
hookean.bsky.social
A ight ray reflection puzzle 🙂 (Hint: Go West from the Star to start)
#iTeachPhysics
#Science 🧪
October 31, 2025 at 11:59 AM
Reposted by Dr Dan Jones
hookean.bsky.social
Halloween Physics 🎃🐈‍⬛👻🧙‍♀️
#iTeachPhysics
#Science 🧪

youtu.be/XcJdXzqbOAI
Halloween Physics demos! #physics #halloween
YouTube video by Hookean Physics
youtu.be
October 30, 2025 at 11:29 AM
hookean.bsky.social
A handy guide to size! 🙂
#iTeachPhysics
#Science 🧪
October 30, 2025 at 5:13 PM
Reposted by Dr Dan Jones
hookean.bsky.social
Hello everyone. It is that time of year again when I need to start a fundraiser to pay for the annual site fees of the physicsed site. If you feel you can contribute here is the link. Thank you! Dan
#PhysicsEd
#iTeachPhysics

ko-fi.com/hookean1
Support Hookean1
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ko-fi.com
October 23, 2025 at 12:15 PM
hookean.bsky.social
Halloween Physics 🎃🐈‍⬛👻🧙‍♀️
#iTeachPhysics
#Science 🧪

youtu.be/XcJdXzqbOAI
Halloween Physics demos! #physics #halloween
YouTube video by Hookean Physics
youtu.be
October 30, 2025 at 11:29 AM
hookean.bsky.social
Can you trace the entire figure in one continuous line without lifting your pencil or retracing any edge?
October 30, 2025 at 8:53 AM
hookean.bsky.social
The Lycurgus Cup is a 4th-century Roman glass cage cup made of a dichroic glass, which shows a different colour depending on whether or not light is passing through it: red when lit from behind and green when lit from in front.
#iTeachPhysics
#Science 🧪
October 29, 2025 at 12:41 PM
hookean.bsky.social
The first NTC thermistor was discovered in 1833 by Michael Faraday, who reported on the semiconducting behaviour of silver sulphide. Faraday noticed that the resistance of silver sulphide decreased dramatically as temperature increased.
#iTeachPhysics
October 29, 2025 at 12:22 PM
hookean.bsky.social
What particle are you?
#iTeachPhysics
#Science 🧪
October 29, 2025 at 10:18 AM
hookean.bsky.social
Wind power has cut £104bn from UK energy costs since 2010, study finds. Reduction comes from energy generated from windfarms and lower cost of gas owing to lower demand
#iTeachPhysics
#Science 🧪

www.theguardian.com/environment/...
Wind power has cut £104bn from UK energy costs since 2010, study finds
Reduction comes from energy generated from windfarms and lower cost of gas owing to lower demand
www.theguardian.com
October 28, 2025 at 10:20 AM
hookean.bsky.social
Fun puzzle
#iTeachPhysics
#Science 🧪
October 27, 2025 at 7:44 PM
hookean.bsky.social
In case you haven't seen it before, below is a nice puzzle I have set for classes in the past. There is a fire and you have a bucket which needs to be filled once from the river and one bucket will put out the fire. What is the minimum distance to do this?
#iTeachPhysics
#Science 🧪
October 27, 2025 at 7:30 PM