SKU: 21754028585

Ripple Tank Economy Model

Sale price$225.00 Regular price$250.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Ripple Tank Economy ModelRipple Tank Economy Model: The Ripple Tank Economy Model is a comprehensive wave demonstration system built around a transparent acrylic plastic tank supported in a sturdy plastic frame with recesses for four adjustable levelling feet. Tank edges are shaped to minimise unwanted reflections, ensuring clean, readable wave patterns. Two light alloy uprights carry a horizontal rippler support rod, adjustable for height. The ripple assembly is elastically

Ripple Tank Economy Model:

The Ripple Tank Economy Model is a comprehensive wave demonstration system built around a transparent acrylic plastic tank supported in a sturdy plastic frame with recesses for four adjustable levelling feet. Tank edges are shaped to minimise unwanted reflections, ensuring clean, readable wave patterns.

Two light alloy uprights carry a horizontal rippler support rod, adjustable for height. The ripple assembly is elastically suspended from this rod and consists of a 4–6V DC motor on a wooden beam. An eccentric weight on the motor shaft causes the beam to oscillate, generating surface waves. Two plastic spheres on right-angle rods serve as two-point sources.

A metal rod is fixed centrally into one short side of the frame to support the illuminant. The 12V, 24W lamp is housed in a lamp house with a long supporting rod suitable for attachment to a retort stand, projecting wave patterns for classroom visibility.

Key features

  • Transparent acrylic plastic tank — clear wave pattern visibility
  • Sturdy plastic frame with four levelling feet for precise horizontal alignment
  • Tank edges shaped to minimise undesired reflections
  • Drain hole with rubber stopper for easy emptying
  • Two light alloy uprights with a height-adjustable rippler support rod
  • Elastically suspended ripple assembly — 4–6V DC motor on wooden beam
  • Eccentric weight produces consistent oscillation for reproducible waves
  • Two plastic sphere point sources on right-angle rods
  • 12V, 24W illuminant for projection-quality wave visualisation
  • Complete accessory set for interference, diffraction, reflection & refraction experiments
  • Supplied with instructions
  • Note: This model is supplied without a power supply. A 4–6V DC source is required for the motor and a 12V supply for the illuminant. Power supplies are available separately.

Included accessories

Two straight aluminium alloy obstacles — 130mm each
One straight obstacle — 40mm
One curved reflector — radius 200mm
One trapezoidal plastic refraction plate
One wood hand wave roller
One water dropper
One packet of rubber bands
One foam plastic sponge
12V, 24W illuminant with lamp house & long support rod

Specifications

SKU SE.MS0350-01
Tank material Transparent acrylic plastic
Frame material Sturdy plastic
Overall tank size 580 × 500 × 80mm
Window area 370 × 280mm
Height above bench (with legs) Approx. 375mm
Legs Four, with levelling feet
Uprights Two light alloy
Motor voltage 4–6V DC
Motor mounting Elastic suspension on wooden beam
Point sources Two plastic spheres on right-angle rods
Illuminant 12V, 24W lamp in lamp house
Illuminant mounting Long rod, attaches to retort stand
Drain Rubber stopper plug
Power supply Not included (required separately)
Instructions Included
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21754028585

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Cuba, US
★★★★★ 5
Amazing how fast it goes on without the white look!
This stuff is amazing!! I wear baby sunscreen because I rub my eyes a lot, but most of it takes forever to rub in and not look white. This rubs in immediately like any other sunscreen, and it doesn’t burn my eyes at all, not even when I scratch my face and then rub my eyes. So it’s great for small children too, not just 75 yr old ones!
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Reviewed in the United States on February 18, 2026
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Jessica
Louisville, US
★★★★★ 5
Used for years
I have used this sunscreen since my kids were toddlers. I don’t find it sticky and it turns clear pretty fast. I don’t typically need to reapply on them more than once.
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Reviewed in the United States on June 3, 2026
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Vera
Charlottesville, US
★★★★★ 5
Great product!
Great product
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Reviewed in the United States on March 25, 2026
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Prickly Pear Picker
Carnegie, US
★★★★★ 5
Works great for the whole familiy
Size: 6 Fl Oz (Pack of 2), Style: Lotion Twin Pack
We live in the desert so with the constant sun exposure, our family needs a reliable sunscreen that is affordable, effective and gentle on skin. This product does all that. It has no fragrance and we've had no skin reactions or irritation. It does leave a white cast, which is to be expected given the active ingredients. We are fine with it...it helps show where it's been applied. We use it a lot for pool days so the price point is good to stay stocked up. Don't let the "kids" label fool you...if it works for kiddos, it works for adults too!
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Reviewed in the United States on April 20, 2026
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Adrien Hebert
Battle Creek, US
★★★★★ 5
Safe, Strong Sun Protection for Little Ones!
Size: 6 Fl Oz (Pack of 2), Style: Lotion Twin Pack
Banana Boat 100% Mineral Kids Sunscreen has become our go-to for sunny days! I love that it’s made with natural, mineral-based ingredients and doesn’t have all the harsh chemicals. It goes on smoothly for a mineral sunscreen—yes, there’s a bit of a white cast at first, but it rubs in nicely and gives me peace of mind knowing my kids are protected with a gentle, effective formula. We’ve used it at the beach, playground, and just running around outside, and it holds up really well. No irritation, no breakouts, and best of all—no sunburns! It’s also water-resistant, which is perfect for active little ones. I’m so glad to have found a sunscreen that checks all the boxes for safety, protection, and reliability.
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Reviewed in the United States on July 9, 2025

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