Physicists make it possible to 3-D print your own baby universe

October 28, 2016

Researchers have created a 3D printed cosmic microwave background - a map of the oldest light in the universe - and provided the files for download.

The (CMB) is a glow that the universe has in the microwave range that maps the oldest light in the universe. It was imprinted when the universe first became transparent, instead of an opaque fog of plasma and radiation.

The CMB formed when the universe was only 380,000 years old - very early on in its now 13.8 billion-year history.

The Planck satellite is making ever-more detailed maps of the CMB, which tells astronomers more about the early universe and the formation of structures within it, such as galaxies. However, more detailed maps are increasingly difficult to view and explore.

To address this issue, Dr Dave Clements from the Department of Physics at Imperial, and two final-year undergraduate students in Physics, have created the plans for 3D printing the CMB. A paper describing the process is published today in the European Journal of Physics.

Dr Clements said: "Presenting the CMB in a truly 3D form, that can be held in the hand and felt rather than viewed, has many potential benefits for teaching and outreach work, and is especially relevant for those with a visual disability.

"Differences in the temperature of the CMB relate to different densities, and it is these that spawned the formation of structure in the universe - including galaxies, galaxy clusters and superclusters.

"Representing these differences as bumps and dips on a spherical surface allows anyone to appreciate the structure of the . For example, the famous 'CMB cold spot', an unusually low temperature region in the CMB, can be felt as a small but isolated depression."

The CMB can be printed from a range of 3D printers, and two files types have been created by the team: one for simple single-colour structures and one that includes the temperature differences represented as colours as well as bumps and dips. The files for both types are free to download.

Explore further: Scientists confirm the universe has no direction

More information: 'Cosmic Sculpture: A new way to visualise the Cosmic Microwave Background' by D. L. Clements, S. Sato, and A. Portela Fonseca will be published Friday 28 October 2016 in the European Journal of Physics at iopscience.iop.org/article/10. … 143-0807/38/1/015601

The 3D files can be downloaded from: dx.doi.org/10.5281/zenodo.60215

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TheGhostofOtto1923
5 / 5 (2) Oct 28, 2016
Soon available for order from Edmund Scientific-

I visited their store in NJ once. What a cool place. All sorts of science fair gadgets and materials with salespeople all wearing lab coats. In the back there was a large room full of surplus stuff, with 1940s music playing to set the mood. Another room was full of lab glassware and equipment. It's closed now.
https://en.m.wiki...poration

Heaven for geeks. They ought to reopen it.

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