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Toysmith Euler’s Disk – Create A Hypnotic Display of Light & Sound with Our Office Desk Accessories – Science Toys for Adults & Kids 8+

4.7 4.7 out of 5 stars 2,348 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
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Brand Toysmith
Theme physics
Age Range (Description) Youth
Item Dimensions LxWxH 10 x 9.5 x 1.5 inches
Item Weight 2.05 Pounds

About this item

  • Spin science into art: Euler’s Disk is a chrome-plated steel disk that produces a captivating sonic hum and a magical holographic display; swap holographic foils for different visual effects; perfect for desk décor or office toys to help increase focus
  • Learning reimagined: Inspired by the inventor of f(x), and Euler’s formula; disk is given kinetic energy when spun on the mirrored base; if not for friction and vibration, it would spin and roll forever; give the disk a twist and let gravity do the rest
  • Euler’s Disk features: These kinetic desk toys come complete with full instructions, 6 disks to spin, the concave mirror for the disk to spin on, and 9 pieces of magnetized holographic foil for a variety of brilliant surface designs
  • Great for gifting: Euler’s Disks make great desk accessories and conversation starters; perfect STEM toys and kids toys to help get excited about science
  • Euler’s Disk details: The 3-inch disk spins on the 9-inch concave mirror, making it perfect for a desk toy or table-top piece; for ages 8 and up

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Toysmith

Toysmith Euler’s Disk – Create A Hypnotic Display of Light & Sound with Our Office Desk Accessories – Science Toys for Adults & Kids 8+


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Product Description

Product Description

Fascinating desktop illusions! Spin the holographic disk on the mirror. Does it speed up? Listen to its rhythmic sounds. Why does the humming get louder as the speed of the disk increases? This patented 3" Diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's disk, 9" Concave mirror base and nine pieces of magnetized holographic foil. Complete with instructions and the scientific answers!

From the Manufacturer

Give the Euler's Disk! This patented 3" diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's Disk, 9" concave mirror base and nine pieces of magnetized holographic foil.

Important information

Safety Information

Choking - Small Parts


From the manufacturer

euler's disk, eulers disk, eulers disc, science toys, big bang theory euler's disk

Fascinating desktop illusions! Spin the holographic disk on the mirror. Does it speed up? Listen to its rhythmic sounds. Why does the humming get louder as the speed of the disk increases? This patented 3" Diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's disk, 9" Concave mirror base and nine pieces of magnetized holographic foil. Complete with instructions and the scientific answers!

What's in the box

  • mirror base,9 pieces of magnetized holographic foil, instructions
  • Looking for specific info?

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    2,348 global ratings

    Customers say

    Customers find the science fundamentals kit very fun and interesting. They also say it's a captivating toy and mesmerizing. Customers appreciate the educational value. However, some customers have mixed opinions on the quality, spin, and value of the product.

    AI-generated from the text of customer reviews

    161 customers mention154 positive7 negative

    Customers find the science fundamentals kit very fun and interesting. They also say it's a captivating toy for all ages. Customers also say the toy looks like it'll be entertaining in person. They say it has an enjoyable and hypnotic thrum. Overall, customers find the to be a fun science toy.

    "...of these kinds of gadgets, but this one is the coolest and clients are always entertained, as well as my staff, haha, and all in all people love my..." Read more

    "...because they used to sell for much cheaper, they are a must have to keep kids busy and learn some science. Us can use on any flat mirror or glass too" Read more

    "...It is very neat and entertains all ages of guests, including dogs. 😃..." Read more

    "Really interesting." Read more

    155 customers mention155 positive0 negative

    Customers find the appearance of the science fundamentals kit interesting, cool, and mesmerizing. They also say it makes intriguing visual and sound effects. Customers also say the product is a compelling desk toy that works as expected.

    "...Get even more amazed at the hypnotically cool display of colors..." Read more

    "...I ordered for his birthday and he loves it! It is very neat and entertains all ages of guests, including dogs. 😃..." Read more

    "Cool but kind of expensive for what it is." Read more

    "the effect is fantastic for the eyes and ears" Read more

    40 customers mention40 positive0 negative

    Customers find the science fundamentals kit to be a great educational item and useful for teaching science to kids. They also say it's a good science take and teaching aide that keeps kids busy and learns some science. Customers also mention that it' a science adventure for all and a cool curiosity to have around for adults. Overall, customers are happy with the educational value of the product.

    "...for much cheaper, they are a must have to keep kids busy and learn some science. Us can use on any flat mirror or glass too" Read more

    "...Great for homeschoolers!" Read more

    "...We have had a lot of fun with this toy. It is great for kids of all ages. It is also a great toy for adults who want to relax and have some fun...." Read more

    "...Great for kids and adults alike!" Read more

    89 customers mention56 positive33 negative

    Customers are mixed about the quality of the science fundamentals kit. Some mention it's very good quality, the disk is super-heavy, and a solid puck of polished metal. However, others say the base for the mirror is far too flimsy and lightweight to accommodate the disc.

    "...Overall it is a good product that is well made...." Read more

    "The shock of this thing is the heavy weight of the disc - precisely machined stainless steel, which explains what you may perceive as the high cost...." Read more

    "Stars as follows: +1 as advertised (mostly), +1 made with precision, +2 no batteries, +1 fascinating, -1 overpriced..." Read more

    "...It is also very durable, so it can withstand a lot of wear and tear...." Read more

    64 customers mention35 positive29 negative

    Customers are mixed about the spin of the science fundamentals kit. Some mention that it spins for a really long time, while others say that it doesn't spin for very long. The disc is hypnotic, and it takes a long time to stop spinning.

    "...they think it will spin and nobody gets that this thing just spins SOOOOOO long and, yeah, tons of fun...." Read more

    "...briefly before friction begins to make war on energy and the spin begins to degrade..." Read more

    "...Amazed that the kids and I just kept spinning it! Spins for a long time by itself and makes a cool sound at the end! Great for homeschoolers!" Read more

    "...The thing is, mine does not spin for very long, and it often flips over onto the wrong side and stops suddenly, ruining the effect...." Read more

    60 customers mention22 positive38 negative

    Customers are mixed about the value of the science fundamentals kit. Some mention that it's well worth the price, while others say that it is very expensive for what it is.

    "Although I feel these are overpriced because they used to sell for much cheaper, they are a must have to keep kids busy and learn some science...." Read more

    "...Definitely worth the small price of admission for this show!Watch video. Like. Buy. Be happy! Share the joy!..." Read more

    "...I suppose you could complain that it's too expensive for what it is, however, to me, the price point seems fair...." Read more

    "Cool but kind of expensive for what it is." Read more

    Excellent for amusement, gift or have it on your desk
    5 Stars
    Excellent for amusement, gift or have it on your desk
    I have it on my desk for those moments where you want to let your mind fly away. But I had two of them, and one given as a gift and kept the other. Really nice.
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    Top reviews from the United States

    Reviewed in the United States on October 7, 2015
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    Top reviews from other countries

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    Poucel
    5.0 out of 5 stars Exelente
    Reviewed in Mexico on February 13, 2024
    perryb
    5.0 out of 5 stars Pretty cool
    Reviewed in Canada on June 5, 2023
    Client d'Amazon
    5.0 out of 5 stars Véritable chef d'oeuvre
    Reviewed in France on July 26, 2022
    One person found this helpful
    Report
    マグリット
    5.0 out of 5 stars 不思議感、満載です!
    Reviewed in Japan on July 18, 2023
    11 people found this helpful
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    Suzi PALMER
    5.0 out of 5 stars Good quality
    Reviewed in Australia on March 23, 2023
    One person found this helpful
    Report