Shanghai Inertia

Satellite experiment on cosmic microwave background radiation — Aerospace & Astronomy exhibit for science museums

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Category	Aerospace & Astronomy
Standard size	Custom size
Supply	Single unit or batch · OEM to your drawing
Lead time	Standard 4–8 weeks after deposit (confirmed per contract)
Warranty	1 year, structure and control
Documents	Specification sheet · control diagram · spare-part list

A standard catalogue model: the dimensions, control package and finish are fixed, which is what keeps the price and the lead time predictable. Size, colour and interface language can be adapted without a new design cycle.

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01 / Overview

In the early stages of the Big Bang, the universe was in a state of extremely high temperature and density, filled with thermal radiation and elementary particles. As the universe continued to expand and cool, around 380000 years after the Big Bang, the temperature dropped low enough for electrons and protons to combine to form neutral hydrogen atoms. At this point, photons no longer frequently interact with charged particles and can freely propagate in the universe, forming the cosmic microwave background radiation. The cosmic microwave background radiation is a key evidence for the Big Bang theory. The uniformity of its temperature and the anisotropy of its radiation provide important information for studying the early structure formation, material distribution, and evolution of the universe.

02 / How visitors use it

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

03 / The science behind it

The cosmic microwave background radiation refers to a type of radiation emitted from the early universe in the radio frequency band, mainly reflecting the state of the universe's "infancy". It presents temperature fluctuations in different colors, with an average of around 2.725K, and the depth of the color represents the temperature. The cosmic microwave background radiation is the oldest light in the universe, providing important information about the early history of the universe. By studying the intensity and distribution of cosmic microwave background radiation, scientists can understand the structure, composition, and evolutionary history of the universe. Exploring the cosmic microwave background radiation has always been an important astronomical task. Currently, a total of three satellites have obtained detailed images of cosmic microwave background radiation, namely the Cosmic Background Explorer (COBE) in 1992, the Wilkinson Microwave Anisotropy Probe (WMAP) in 2003, and the Planck Survey in 2013. With the development of time and technology.

04 / Built for a public floor

Every unit leaves the factory after a running test: mechanisms cycled, electronics burned in, edges dressed, fixings torqued and marked. Wear parts — bearings, sliders, lamps, belts, touch panels — are modular and listed on the spare-part sheet, so a venue technician can replace them without returning the exhibit. Crating is plywood with foam blocking; the loading plan and packing list travel with the shipment.