---
product_id: 226283889
title: "BULGING OF EARTH - Equatorial bulge"
brand: "the curious brain"
price: "AR$23581"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/226283889-bulging-of-earth-equatorial-bulge
store_origin: AR
region: Argentina
---

# 3D Equatorial Bulge Model Multicolor MDF Design Hands-on Assembly Kit BULGING OF EARTH - Equatorial bulge

**Brand:** the curious brain
**Price:** AR$23581
**Availability:** ✅ In Stock

## Summary

> 🌟 Own the Earth’s curve—build, learn, and lead the science wave!

## Quick Answers

- **What is this?** BULGING OF EARTH - Equatorial bulge by the curious brain
- **How much does it cost?** AR$23581 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/226283889-bulging-of-earth-equatorial-bulge)

## Best For

- the curious brain enthusiasts

## Why This Product

- Trusted the curious brain brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Zero Battery Hassle:** Completely manual, no batteries needed—pure learning powered by curiosity.
- • **Authentically Handmade:** Each kit is uniquely crafted, giving a raw, student-created feel that sparks pride and ownership.
- • **Engage with Earth's Shape:** Experience the equatorial bulge in a tangible 3D model that brings geography to life.
- • **Boost Creative STEM Skills:** Encourages imagination, observation, and out-of-the-box scientific thinking through hands-on assembly.
- • **Perfect Gift for Young Innovators:** Ideal for school projects, awards, and birthday gifts that inspire scientific wonder.

## Overview

The BULGING OF EARTH - Equatorial bulge is a 3D educational model kit made from multicolor MDF, designed to help children understand Earth's equatorial bulge through hands-on assembly. Lightweight and battery-free, it fosters creativity, observation, and scientific curiosity, making it an ideal STEM gift and learning tool for young students.

## Description

The Earth is not a perfect sphere. Due to it's rotation, the Earth (like all rotating planets) has a slightly distorted shape. The rotational momentum tends to force the matter to bunch up in the middle. In the case of the Earth, this "middle" is the equator. Earth’s Rotation Causes …. Bulging at Equator And Flattening at the Poles HOW IT WORKS Attach the 9v battery with the battery snap and observe what happens….. Observation: In idle condition the spring bands are circular in shape. On connecting the battery with the Snap, Motor rotates and Spins the Vertical Rod. Bands fixed to the vertical rod also spin. The top of the band can slide along the vertical rod. Spinning the ring-shaped band makes it bulge out. Hence the spring bands bulges at its equator and flattens at its poles in analogy with the Earth. HOW IT WORKS CENTRIPETAL FORCE: There are only two forces acting on the object, the Earth's gravity, which acts in a downward direction, and the equal and opposite tension in the spring, acting upward

## Features

- Working Model Project Kit / Working Experiments. Ideal for Children, School, Learning Project Activity, Children can use their Creativity & Understand fundamentally. Understand What, How & Why, Principle of Working! Provides joyful and meaningful learning experience. Instils wonder and fascination towards science among young students
- Ignite interest in subject and inculcate a scientific attitude. Motivates out-of-box thinking imagination and inquisitive mind. It channelizes energy of children in a focussed direction. Great Gift, as Prize /award in Schools, Birthday Party & functions. Complete assembly instructions with easy Language and Photographs.
- All of Junior Scientist products are unique and handmade. We work by designs and Endeavour to create like products. However the very nature of being individually designed by hand gives raw finishing of the projects since it should look that students have created on its own.
- All products are unique and handmade.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Educational Objective(s) | Creative Skills, Imagination Development, Observation Skills |
| Assembly Required | Yes |
| Batteries Required | No |
| Batteries Included | No |
| Material Type(s) | MDF and other |
| Colour | Multicolor |
| Product Dimensions | 10 x 10 x 15 cm; 150 g |
| Manufacturer | JUNIOR SCIENTIST |
| Country of Origin | India |
| Item Weight | 150 g |

## Product Details

- **Brand:** THE CURIOUS BRAIN
- **Theme:** Shape
- **Age Range (Description):** Kid
- **Material:** MDF and other
- **Colour:** Multicolor

## Images

![BULGING OF EARTH - Equatorial bulge - Image 1](https://m.media-amazon.com/images/I/71wqwBGOlGL.jpg)

## Frequently Bought Together

- BULGING OF EARTH - Equatorial bulge
- Youngineers 24-in-1 Physics Practicals Kit for Class 10, CBSE & ICSE, Ages 14-16, Science Experiments, Interactive Educational Videos with Practice Questions & Preparation Tips
- THE CURIOUS BRAIN Lens & Mirror Experiment Set (Multi Color) for Boys & Girls with Prism, Glass SLABE, Stand

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-03*