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USA special
This video contains:

Novatrope: this electro-kinetic sculpture uses strobing LEDs to animate a fractal inspired spiral geometry- similar to a 3D zoetrope. The shape and motion perceived by the eye depends on the ratio of the spin rate and frequency of the strobing light (adjusted with the silver knob). Each Novatrope comes with multiple 3D printed translucent sculptures (@physicsfun will feature others soon in future posts) each based on phyllotactic spirals such as the well known Fibonacci curve. A wonderful new type of kinetic art infused with math, physics, and psychophysics by Brandon Keeber and his design team.

CineSpinner Pencil Topper: motion animation from Moiré pattern effects of constructive and deconstructive interference.

Electric Motor/Generator: this inexpensive and common motor can also serve as a generator of AC electricity- here lightning an LED when the shaft of the rotor is spun by hand. Most electrical energy we use today is produced by moving a magnet near a coil of wire (known as Faraday’s law of induction) to produce an electric current. Removing the permanent magnet casing reveals this design to use 9 separate copper windings. I made a transparent second rotor with six neodymium magnets- and when these magnets are made to move near the windings the LED again lights with the flow of current.

Viewing Magnetic Poles: visualizing the invisible- tiny iron filings suspended in viscous oil gracefully chain up to reveal the presence of magnetic field lines. Can you determine how the magnetic polls are configured by the structure of the field lines? Here three configurations, initially hidden behind white foam board, create the beautiful mappings of the fields.

Hybrid Gyroscope Top: the Advanced Gyro is a new design by @physicshack which exhibits a interesting vertical stability phenomenon when placed on this unique stand with three ball bearings that serve to minimize friction and keep the gyro centered. The top defies gravity, due in part to its angular momentum, and its spin axis slowly rises to a stable vertical position from subtle rolling friction interactions with the ball bearings. No pull cord needed, this unique design spins up via friction with a working surface (thin cardboard works well) and applying a circular motion to bring the rotor up to 1000s of RPM. Machined from solid stainless steel this top weighs in at about half a kilo, providing inertia that produces long spin times. Thanks to inventor/designer David Fowler for sending me this fantastic gyro.

Tautochrone Curve

Silica Aerogel

Moiré Kinetic Art

Mirror Anamorphosis with a Pint

The Lava Lamp: kinetic art and an amazing amount of physics: convective heat flow, Archimedes principle, and immiscible liquids to name just some of the science behind this famous device. Manufactured by Mathmos and invented in 1963 by Edward Walker of Dorset, England.

Coins of Constant Width: the only coins produced in the shape of the Reuleaux triangle, issued in 1997 and 1998 by Bermuda. The special convex shape of the Reuleaux triangle will roll, because like a circle they have the same diameter from one side to the other, no matter their orientation. To demonstrate this property note here how two straightedge rulers remain parallel as the coins rotate between them, just as one would expect circles to behave! Bermuda triangle (ha!) coins were only produced for two years and featured Elizabeth II on the front and shipwrecks on the back- this one depicts the wreck of the Sea Venture.

Background music by :

1)Endless Way by SilentCrafter https://soundcloud.com/user-907904720
Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0
Free Download / Stream: https://bit.ly/endless-way
Music promoted by Audio Library https://youtu.be/j7njyY6vTIg

2) Track: Lost Sky – Dreams [NCS Release] Music provided by NoCopyrightSounds.
Watch: https://youtu.be/SHFTHDncw0g
Free Download / Stream: http://ncs.io/DreamsYO

#physics #physicsfun #science


  1. Вечный кайф on August 8, 2020 at 6:23 pm

    forgotten things thanks

  2. SARATH R G on August 8, 2020 at 6:24 pm

    Hai physicsfun I am from India.My favourite toy is hybrid gyroscope top.
    The answer of today’s brainteasers is newton’s third law of motion it states that ever action has an equat and opposite reaction and the act on two different bodies.

  3. Divy 1480 on August 8, 2020 at 6:29 pm

    I love your videos, 😍how you find these amazing things🤖

  4. Debanshi Kar on August 8, 2020 at 6:29 pm

    Newton’s Third Law Of Motion → For every action there is an equal and opposite reaction.

  5. Bichitrananda Mohapatra on August 8, 2020 at 6:32 pm

    Conservation of momentum…..f=dp/dt

  6. Mick Spencer on August 8, 2020 at 6:33 pm

    I am in the UK ,my favourite is the Novatrope

  7. opelgrove Go on August 8, 2020 at 6:34 pm

    It’s Newton’s second and third law of motion : if you don’t give it a force, it won’t move or spin like that (Newton’s second law). and when it crash to another ball, the reaction make that ball move(Newton’s third law)

  8. Rahul Garg on August 8, 2020 at 6:34 pm

    2nd law p=mv

  9. physicsfun on August 8, 2020 at 6:35 pm

    Hello 🙂 Where are you from 🌍?
    Comment your favorite toy.

  10. himank gaming on August 8, 2020 at 6:35 pm

    Newton’s second law which deals with law of conservation of momentum

  11. AXMFS5 HACK3RS on August 8, 2020 at 6:35 pm

    Reality is always mystery 💞

  12. SAY. Gamer on August 8, 2020 at 6:36 pm


  13. warriors movies clips on August 8, 2020 at 6:41 pm

    More explain because , I don’t understand how it happened

  14. The master gamer on August 8, 2020 at 6:42 pm

    These are the no. Of people who hate chemistry.

  15. Aaron B on August 8, 2020 at 6:44 pm

    I like your music. And not sure why. By the way: 06:40 – This looks good 🙂

  16. neo 31187 on August 8, 2020 at 6:47 pm

    Newton 2nd law of motion

  17. Isaac Dueck on August 8, 2020 at 6:49 pm

    With any action applied, there is an equal and opposite reaction

  18. Kylie Trahan on August 8, 2020 at 6:50 pm

    Thank you for selecting my comment.

  19. Maruti s on August 8, 2020 at 6:50 pm


  20. Joshy 101 on August 8, 2020 at 6:51 pm

    Conservation of energy

  21. Daniel Roth on August 8, 2020 at 6:53 pm

    While watching is interesting, it’s hard to listen to that music…

  22. Joyce Malik on August 8, 2020 at 6:54 pm

    Newtons third law of motion

  23. Aldin Osmanagic on August 8, 2020 at 6:54 pm

    It’s Newton’s third law, it states that when one thing hits another, all of the force gets transferred into that object.

  24. Bessie Hillum on August 8, 2020 at 6:55 pm

    I was not a fan of the music in this episode.

  25. Mike Riemer on August 8, 2020 at 6:55 pm

    Whoever selected that "music" needs therapy.

  26. Daniel Hutanu on August 8, 2020 at 6:56 pm


  27. SURAJ Mandal on August 8, 2020 at 6:57 pm

    2nd law of motion

  28. Mohamed Arif H on August 8, 2020 at 6:57 pm

    Law of conservation of momentum

  29. Ashish Varia on August 8, 2020 at 6:58 pm

    Funny phiscs 🙂

  30. Laddi Singh on August 8, 2020 at 7:01 pm

    Law of conservation of momentum

  31. head trip industries on August 8, 2020 at 7:01 pm

    my sleepy brother versus a [drugged-burnt-monkey-dog] brain…ready go…

  32. elimba78 on August 8, 2020 at 7:02 pm

    Like a anolog tv it runs at good speed, it has incoming and processing and outgoing information. How come computers can’t be so simple and fast. Like to not wait it just does that incoming and processing and outgoing.

    To be like a continuous simulation what ever each program or application be . No matter how much data or processing power it takes.

    If a vhs device can be so good at it why computers have to be so awesome to run big programs. Simply like the tv screen as well no matter what was in screen, it played out ok. But at same time a computer can not achieve the same effect . To provide to the screen and mess with said screen or incoming and outgoing information ? Simply changing the few of it and the next reaction can occur. Like fractal geometry it is effect of continuous equations or information or patterns.

    In which detail in the screen resolution could be higher and more hyper realistic down to the effect of microstructures, for video or video games . In which games could pertain world’s of the size of earth as well. Also for understanding patterns or units of something. Anyway as such patterns or details at it’s certain speeds some could be super fast too within the details, that most computers today can not achieve .

  33. Are you Ready on August 8, 2020 at 7:03 pm

    Background music was so funny and awesome 🤣🤣😂😂

  34. himank gaming on August 8, 2020 at 7:04 pm

    These toys demonstrate physics

    What about biology toys if you know what I mean 🤔😏😂😂😂😂

  35. Ramesis Nava on August 8, 2020 at 7:04 pm

    Newton’s law of motion: an object in motion stays in motion until stopped by an outer force

  36. achal bajpai achal bajpai on August 8, 2020 at 7:06 pm

    Newtons second law of motion
    When to equal weight objets colloid each other first objet compete force applied on second object

  37. GameTrix HINDI on August 8, 2020 at 7:08 pm

    I like Hybrid Gyroscope !

  38. sandorium1 on August 8, 2020 at 7:09 pm


  39. Vishal Varma on August 8, 2020 at 7:09 pm

    No way. My comment was shown in the video. Thanks physicsfun. By the way, the answer to the brain teaser is Newton’s third law motion. It states that every action has an equal and opposite reaction and it always acts on two different bodies

  40. Aleh Autushka on August 8, 2020 at 7:12 pm

    lol… this music 🙂

  41. Himanshu Patel on August 8, 2020 at 7:12 pm

    Third law of motion

  42. Вечный кайф on August 8, 2020 at 7:13 pm


  43. Philippe Gilson on August 8, 2020 at 7:16 pm

    These are basic experiments I learned 40 years ago. What do you learn at school ? 1+1=2 ?

  44. RIXRADvidz on August 8, 2020 at 7:16 pm

    So Often, we can do without the ”music”. MUTE works wonders.

  45. gourav rana on August 8, 2020 at 7:18 pm

    Newton’s Laws in Pendulums

    Newton’s first law defines the velocity of objects in response to forces. The law states that if an object moves at a specific speed and in a straight line, it will continue to move at that speed and in a straight line, infinitely, as long as no other force acts on it. Imagine throwing a ball straight forward – the ball would go around the earth over and over if air resistance and gravity did not act on it. This law shows that since a pendulum moves side to side and not up and down it has no up and down forces acting on it.

    Newton’s second law is used in determining the net force on the pendulum by setting the gravitational force equal to the force of the string that pulls back up on the pendulum. Setting these equations equal to one another lets you derive the equations of motion for the pendulum.

    Newton’s third law states that every action has a reaction of equal force. This law works with the first law showing that although the mass and gravity cancel out the vertical component of string tension vector, nothing cancels out the horizontal component. This law shows that the forces acting on a pendulum can cancel each other.

    Physicists use Newton’s first, second and third laws to prove the horizontal string tension moves the pendulum without regard to mass or gravity. The laws of a simple pendulum follow the ideas of Newton’s three laws of motion.Ok

  46. Bijay Shankar Malakar on August 8, 2020 at 7:18 pm

    Newton’s third law of motion is applied in that.
    It states that every action has a opposite and equal reaction.
    Here the ball are hitting eachother simultaneously and the action of the first ball is applied to the second again the second ball to the first and goes on. ..

  47. CONRAD WILEY on August 8, 2020 at 7:18 pm

    Troup Me Out..*

  48. soni gupta on August 8, 2020 at 7:19 pm

    Newton’s 3rd law of motion
    For every action there is an equal and opposite reaction, i studied in 9th class

  49. I Am Ruthłess on August 8, 2020 at 7:20 pm

    Yeah science is cool. But NEVER FORGET THAT GOD CREATED EVERYTHING, YOU. you must first prioritize God JESUS our Holy saviour and Father. You will face judgement from GOD AND ONLY HIM. All the scientists that made these inventions EXISTS BECAUSE OF GOD.

  50. Manseerat Kaur on August 8, 2020 at 7:22 pm

    newton’s third law of motion

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