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The Leidenfrost effect: when drops levitate

Water droplets can levitate on hot surfaces thanks to a vapor layer. Learn how in this ESPCI Paris MOOC video.

🎥 https://www.youtube.com/watch?v=keKFb9a32_M&list=PLcbz7zf4dTyk9BqlBPLpgI48i9TiorpEi&index=11

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#LeidenfrostEffect #Droplet #FluidDynamics #ScienceResearch #MOOC

Just spent the day setting up some devops scripts for bringing up a branded and secured self-hosted Jitsi Meet video conferencing server droplet on digitalocean for business meetings for the FOSH accessibility non-profit, @bce .

#foss #fosh #freesoftware #boycottgoogle #boycottapple #boycottmicrosoft #antimonopoly #jitsi #security #privacy #devops #digitalocean #droplet

Droplets after the (heavy) rain. They form "almost perfect" spheres on the leaves, that act as lenses.

#photography #droplet

A little world of moss

#nature #naturephotography #moss #mosstodon #waterdrops #droplet #winter

A macro photograph of a small patch of moss. On the right is a sporophyte with a large drop of water hanging off it, with just the drop in sharp focus, and on the left is a couple of damp bright green leaves of moss, surrounded by a few pine needles

The rest of the image is an out of focus blur in different colours from moss and reindeer lichen.

Water droplet hitting the water. Using milk in the water created this unique effect where the droplet looks like a figure.
#photography #fotografie
#droplet #figure

Entanglement

#nature #naturephotography #lichen #water #waterdrops #droplet #green #winter

A macro photograph of a water drop hanging from the end of a tangled vertical bunch of light green strands of a lichen from the Usnea genus.

The background is entirely blurred to an almost uniform green, just a slightly darker shade than the lichen strands in focus.

The last drop

#nature #naturephotography #water #waterdrops #droplet

A square macro photograph in cool blue light of a sharply focused water drop, hanging off the end of a small branch or root on a dead tree.

The wet branch has a bluish sheen from reflecting the light.

The background behind the branch and drop is a very pale blue, gently arching towards almost black along the left edge.

The spruce tree's embrace II

This is the same water drop as the one from a couple of days ago, taken just a minute apart. The only difference is the angle it's taken at, catching a bit of the background that has the same luminosity as the drop instead, hilighting the difference just a small shift in perspective can give.

#nature #naturephotography #waterdrops #droplet

A square, predominantly green photograph of a waterdrop at the end of a spruce twig. The drop is sitting as if embraced by the spruce needles.

The depth of field is shallow, giving an almost oil painting look of the rest of the twig and the spruce branches in the background, which are almost entirely blurred

The spruce tree's embrace

#nature #naturephotography #silhouette #waterdrops #droplet #monochrome

A square, monochromatic (but shot in colour) photograph of a waterdrop at the end of a spruce twig. The drop is sitting as if embraced by the spruce needles. The drop and spruce twigs sit in deep shade, silhouetted against the cool bright sky behind.

#Olympus 28 3.5

#Lumix #GH5 #Apple #nature #naturephotography #water #droplet #plant #flora
#photography #MFT #photo #vintagelens

#Olympus 28mm 3.5 M42

#Lumix #GH5 #water #macro #closeup #nature #plant #flora #plants #naturephotogrphy #droplet
#photography #MFT #photo #vintagelens

A perfect fit

#nature #naturephotography #moss #mosstodon #droplet #waterdrops

A close up photo of a cluster of haircap moss in the middle of the image. The focus is on a round water drop that sits between two leaves near the top of the leftmost piece of moss.

in the very blurry out of focus background goes a wide diagonal streak of white from snow, and the rest of the background is mostly green.

The beauty of a single drop of water

#nature #naturephotography #waterdrop #droplet #minimalism

$A very wide crop of a single drop of water hanging in the middle of a horizontal straw. the straw leaves the plane of focus making it look wider and blurry towards the edges The water drop refracts a forest scene behind, inverted. The background very blurry and almost, but not quite, uniformly green.$