Using a lens instead of a mirror for collimating light in display holography

When recording display holograms, the traditional method of collimating (making parallel) a diverging light beam is to use a parabolic mirror. This is a good method for the least light loss and the most perfect collimation, but the mirror needs to... continue reading

Great stock or climate change indicator?

I propose to gather a collection of sock price histories and various indicators of climate change (temperatures, CO2 levels, etc.) and anonymize their labels. These would be used to create a game or prediction market so that the players would be... continue reading

The Galactic Astigmatism: Constraining the Milky Way Dark Matter Halo Using Ultra-Weak Lensing

An astigmatism is defined as an asymmetry of the front of the eye, causing light to not focus on a single point. Because the Sun is located ~8kpc off-center in the Milky Way, the integrated mass density of galactic dark matter varies significantly... continue reading

The Journal of Brief Ideas

One thing slowing down the flow of research information is that the quantum of research, or the smallest publishable amount, is actually quite large, meaning that a lot of good ideas don’t get published (i.e. spread). Ideas stuck in a mind are no... continue reading

Welcome

This is the Journal of Brief Ideas - citable ideas in fewer than 200 words.

Before you can create a new idea, you'll need to log in using the link above. You also can't vote on existing ideas without signing in too.

Voting

Click on the icon to vote on an idea. You can't vote on your own ideas.