Two different sets of #IridescentVapourTrails captured from Oxfordshire, UK 15 June '25 The colours are created when sunlight is diffracted by tiny water droplets that condense out over the aircraft wings. Canon 1100D + 300mm zoom lens #AtmosphericOptics #Aviation #Diffraction

Tree sex makes colored rings in the sky – Yesterday, I observed pollen coronas around the sun and the moon.

These colorful rings appear around the sun / the moon when airborne pollen diffracts the light (=deflects it depending on its color).

Different pollen types make different coronas. Here, it is likely pine pollen.

pic 1 at 14:08 CEST, f=200 mm, sun covered by street lamp.

pic 2 at 22:27 CEST, f=200 mm, moon overexposed

Very nice pollen based atmospheric optics.

Last night I observed a pollen corona around the bright moon. These colored rings around the moon are created when its light is refracted by airborne pollen.

Depending on the type of pollen, different ring shapes and sizes appear. This one is probably from pine pollen.

Image: 22:53 CEST | f=300 mm | aperture 5.6 | ISO 1250 | 0.5 s

#Coronas are commonly seen around the Sun & Moon but they can also form around bright planets & stars. On 30th Jan '25 I photographed this beautiful #Venus #corona. They form when light from the Sun or Moon is diffracted by water droplets in cloud. Canon 1100D 10-18mm & 300mm lenses, Oxfordshire, UK #AtmosphericOptics #OpticalEffects #Diffraction

Is there a good public database of x-ray diffraction for chemical compounds? #chemistry #diffraction #science #molecularstructure

Here comes the sun
Here comes the sun, and I say
It's alright

CC BY-SA Kate Zimmerman

Double-Slit Time Diffraction At Optical Frequencies - The double-slit experiment, first performed by [Thomas Young] in 1801 provided the... - https://hackaday.com/2024/10/18/double-slit-time-diffraction-at-optical-frequencies/ #diffraction #double-slit #science

Creating Customized Diffraction Lenses For Lasers - [The Thought Emporium] has been fascinated by holograms for a long time, and in al... - https://hackaday.com/2024/08/23/creating-customized-diffraction-lenses-for-lasers/ #diffractiongrating #diffraction #pointsource #science #python #laser #light #film #lens

Why do stars have spikes? Not only did I find out, but I found out how to PREVENT them:
YouTube Demonstration: youtu.be/0StgQCw5oco

An Improved Spectrometer, No Lasers Required - Here at Hackaday, we love it when someone picks up the ball from a previous projec... - https://hackaday.com/2024/05/27/an-improved-spectrometer-no-lasers-required/ #digitalcamerashacks #colorfilterarray #machinelearning #spectrometer #spectroscopy #bayerfilter #diffraction #spectrum #fuji

Optical Tweezers Investigate Tiny Particles - No matter how small you make a pair of tweezers, there will always be things that ... - https://hackaday.com/2024/04/22/optical-tweezers-investigate-tiny-particles/ #opticaltweezers #opticaldrive #diffraction #laserhacks #chemistry #dvdburner #glycerol #tweezers #biology #colloid #laser

CPU-Temperaturen unserer #Heinzelmännchen bei der #Datenauswertung der jüngsten Scanning-#SAXS-Messzeit, frische Daten von der #ID13 / #ESRF Grenoble.

Playing with #diffraction

Ice forming in a wetlands marsh in a pine grove and diffraction #OpticalPhenomena.

Plants employ chemical engineering to manufacture bee-luring optical devices
https://phys.org/news/2022-11-employ-chemical-bee-luring-optical-devices.html

Cuticle #chemistry drives the development of #diffraction gratings on the #Hibiscus trionum petals https://www.cell.com/current-biology/fulltext/S0960-9822(22)01713-4

While most #flowers produce pigments, some flowers also create microscopic 3D patterns on their petal surfaces. These striations reflect particular wavelengths of light to produce an iridescent #optical effect that is not always visible to humans, yet visible to #bees.