PhillyMoonMen

Bringing sidewalk astronomy to light polluted places

[Alejandro Sánchez @pmisson]

Light pollution in the Belgian North Sea affects the ecosystem - Dividend Wealth - https://t.co/p9fQiiH8Dd #GoogleAlerts

[Carlton Reid @carltonreid]

Using parcours skills to turn off needless corporate lighting during an energy crisis.

[PhillyMoonMen @PhillyMoonMen]

Do we have the technology to reverse light pollution?

[PhillyMoonMen @PhillyMoonMen]

@salvabara Interesting!

It seems like this is a consequence of the fact that many real world objects are lambertian scatterers.

Does this suggest that, in order to improve our lighting, we actually need to improve the surfaces that we are shining the light onto?

[PhillyMoonMen @PhillyMoonMen]

@TeleskopService I'll enter! I could buy a couple of new moon filters for sidewalk astronomy!

[Miguel Angel @zurramanga]

@sen_meneses Jeje, yo tengo otro método más rudimentario 🤣

[@[email protected] @KropBenesch]

A study found correlations between crime and street light! Areas that had no lights between midnight and 5 am had less crime. Obviously, thieves need light for their work. https://t.co/q0fjl10GWp

[PhillyMoonMen @PhillyMoonMen]

If you looked up from this spot 150 years ago, you would see the Milky Way. Today, we only have the moon.

150 people joined us in Grand Place from 14 different countries. More than 100 of them had never looked through a telescope before.

[Photonics Society Ghent @PhotSocGhent]

Join us next Tuesday, March 8th, at 7pm for a talk+demo on Sidewalk Astronomy by M.S. Photonics student Bill Green! After the talk, participants have the unique opportunity to admire the universe with a telescope. @PhotonicsUGent
Register here: https://t.co/2fpLYmu3dR

[PhillyMoonMen @PhillyMoonMen]

@KropBenesch From the manufacturer's perspective, LEDs are so cheap and energy efficient that it makes more sense to double the output than to add a down-reflector.

I agree that solutions will probably come from regulation and not purely innovation. How can engineers help?

[PhillyMoonMen @PhillyMoonMen]

We pointed telescopes at Orion and the Moon during #Brightbrussels festival to discover the lights of the Universe and discuss solutions for light pollution.

[Dani Robertson @DaniDarkSkies]

Rule 3: Lights need to face down and be fully shielded, so all that electricity you are paying for is being directed to where you need it and not being wasted by being sent into the night sky.

[Dani Robertson @DaniDarkSkies]

Rule 5: CRUCIAL! The colour temperature of the light needs to be warm white. That equates to around 2700-3000 on the Kelvin scale. If you’re unsure, check the tech spec online or ask in the shop. This is what will interfere the least with our wildlife and our own health.

[EU-Startups @EU_Startups]

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[@[email protected] @KropBenesch]

This happens if ecologists and lighting technician work together: Luminaires that only illuminate the street, not the environment and don't produce glare. The next step towards good lighting.

[PhillyMoonMen @PhillyMoonMen]

@AndreasJechow @LeibnizIGB @TUBerlin @SchroerSibylle @AubeNews Amazing! Doing more with less and harnessing the immense power of LEDs in a responsible way.

[Cities at Night @cities4tnight]

Our Lesson Plan now in 🇬🇧🇩🇪🇫🇷🇪🇸!!! Citizen science project to locate light pollution sources from 🛰️https://t.co/b3V8y0IiyW

[PhillyMoonMen @PhillyMoonMen]

Can I go back to believing light is a ray?

[Fundación Starlight @FundStarlight]

Light Pollution ++ Meteorology and Astronomy ++
How air pollution makes stars disappear
((Lectures held online by Jitsi meet))