Live data from Hacker News

Drone footage of fledging penguins jumping off cliff

petapixel.com

51–60 of 93 posts

Re: Drone footage of fledging penguins jumping off cliff

#51
post #29

Very odd footage imo. * most of the birds are falling in because they’re pushed, not because they’re jumping * most of the birds are belly flopping hard rather than diving in with any sort of graceful entry * most birds don’t appear to ever jump. I refuse to believe the camera wouldn’t have shown the whole population in the water if they had

> most of the birds are falling in because they’re pushed, not because they’re jumping

It's the same as every other bird? It surprised me that it isn't their parents pushing them.

Re: Drone footage of fledging penguins jumping off cliff

#52

Earlier quoted context omitted.

If it was really enjoyable, you will remember it. The human memory is designed to fix emotional experiences. No need for celluloid or pixels. If you were with a loved one, your future conversations about that time will keep the memory alive. There is a certain value and excitement in showing personal photos or videos to grand-children. But their children will not even know your name. The vanity and self-importance of…

> If it was really enjoyable, you will remember it. The human memory is designed to fix emotional experiences. No need for celluloid or pixels. If you were with a loved one, your future conversations about that time will keep the memory alive. Words to live by. My point is this: the act of capturing photo and/or video is itself the draw for some people. It's an art form - beauty isn't just captured in a photograph, i…

I think the value of photography is in teaching how to really see and appreciate the world, not in any artifact you may have created (at least not very often, unless you are a genius).

It is similar to the way learning a musical skill (instrument, composition, production) teaches you to really hear music, which is probably more valuable than any particular sounds you created (again, geniuses excepted).

There is a similar formula for other artistic and professional practices. No graphic designer just reads a web page. No cabinetmaker walks into a room and sees it the way you do. No architect or town planner ever just walks down an anonymous street in a strange city...

Re: Drone footage of fledging penguins jumping off cliff

#53
post #5

Its interesting how unskilled nature can be and still get away with it (here I guess to the thick fur/skin/fat below). If humans would jump from such height so badly, many injuries and possibly few deaths would be happening. I've done my fair of jumps in Swiss swimming pools / beaches where 10m jumping board is standard equipment, and even slightly incorrect landing can be quite brutal on the body. Falling ie on the…

It's mainly due to the square/cube law. Small things, including animals, can fall from great heights with little damage.

Add feathers to that, and those heights become really great.

Re: Drone footage of fledging penguins jumping off cliff

#54
post #20

[flagged]

Perplexity.ai: calculate the terminal velocity of an average sized penguin falling head first - Sources omnicalculator.com favicon wikihow.com favicon View 2 more Answer The terminal velocity of an average-sized penguin falling head-first can be calculated as follows: Assuming an average penguin weight of 5 kg and a cross-sectional area of 0.1 m^2, with a drag coefficient of 0.8 for a streamlined, head-first orientat…

Those penguins are almost certainly smaller and less dense than those numbers. It seems to be solving for an adult in some medium-sized species (what makes a lot of sense).

Re: Drone footage of fledging penguins jumping off cliff

#55
post #33

First drone footage of x is becoming a little rarefied, not to say boring and predictable for some values of x. So I expect this to be the peak of consumers buying little mavics to film their trips to Mont Blanc or the Amalfi Coast. Honestly, their friends are not interested. It was sad and ridiculous while it lasted, and now I hope it's over.

First written account of x is becoming a little rarefied, not to say boring and predictable for some values of x. So I expect this to be the peak of consumers buying little bics to write about their trips to Mont Blanc or the Amalfi Coast. Honestly, their friends are not interested. It was sad and ridiculous while it lasted, and now I hope it's over.

Assumed to be obvious before it was observed (how else?).

Seen and filmed many many times for adults leaping into the water.

Already documented: 'witnessed by scientists'.

Published by a site called petapixel with breathless words like 'astonishing', 'unprecedented', 'enormous cliff', 'huge jumps', 'rare and heart-stopping', 'extraordinary footage', 'huge ice cliff', 'brave chick' ... in an effort to create buzz for their sponsor National Geographic.

The only mildly interesting phrase is: 'Scientists who monitor penguins from satellites'. Sounds like a fun job and I'm sure AI can help. I didn't know that (although I once helped the BAS effort to monitor elephant seals diving deep in the S.Atlantic, using radio transponders glued to their backs, with burst-transmit-on-surfacing via satellite, so I should not have been surprised, had I thought for a second). But then they spoil it by adding 'satellites...in space'.

If the chicks were drawing lots to see who had to jump first, then I might be interested.

Re: Drone footage of fledging penguins jumping off cliff

#57

Given this video is taken by a drone, and drones are very noisy, are the splashing sounds and sounds of penguins chirping added later?

Two dimensions to this question: first, drone noise; second, audio track. On the noise: > "Given this video is taken by a drone, and drones are very noisy..." Here's from National Geographic's press release on this video: “Through the harnessing of new technology and pushing the boundaries of polar filming, Bertie utilized a newly released camera drone equipped with a telephoto lens allowing him to capture animal beh…

Thats a lot of word to say you dont know beyond the sentence you quote

Its likely fake like most NatGeo vids (not that it takes away any of the visual awesomeness)

Re: Drone footage of fledging penguins jumping off cliff

#58

Earlier quoted context omitted.

Two dimensions to this question: first, drone noise; second, audio track. On the noise: > "Given this video is taken by a drone, and drones are very noisy..." Here's from National Geographic's press release on this video: “Through the harnessing of new technology and pushing the boundaries of polar filming, Bertie utilized a newly released camera drone equipped with a telephoto lens allowing him to capture animal beh…

Thats a lot of word to say you dont know beyond the sentence you quote Its likely fake like most NatGeo vids (not that it takes away any of the visual awesomeness)

> Thats a lot of word to say you dont know beyond the sentence you quote. Its likely fake...

And a lot of words to agree that “it's unlikely these sounds are recorded from the drone”?

The additional words are to share the most common industry ways it can be done if it's not foley.

OTOH, if you're "the" david guetta, my words certainly wasted your time. :-)

Re: Drone footage of fledging penguins jumping off cliff

#59
post #30

Earlier quoted context omitted.

Seems very difficult to explain this as food motivated

There's edible fish in the water. What other food is there on the ice?

Penguins enter the water all the time to hunt fish.

Not off cliffs.

Re: Drone footage of fledging penguins jumping off cliff

#60
post #29

Very odd footage imo. * most of the birds are falling in because they’re pushed, not because they’re jumping * most of the birds are belly flopping hard rather than diving in with any sort of graceful entry * most birds don’t appear to ever jump. I refuse to believe the camera wouldn’t have shown the whole population in the water if they had

> most of the birds are falling in because they’re pushed, not because they’re jumping It's the same as every other bird? It surprised me that it isn't their parents pushing them.

Like out of the nest? That doesn’t really track with the mass movement towards the cliff edge as a precursor.
Post reply on HN