one of the upsides of getting up really early for pre-dawn measurements is the opportunity to set up a camera to capture a time lapse of the sunrise.
this particular morning turned out to revolve more around the movement of clouds, rather than the actual rising sun.
recorded at 4 seconds interval and 30 fps.
last weekend, i was (re)introduced to trad rock climbing by carrie & john. what better region to do that than the blue mountains?
here’s a time lapse video of our first climb at mount piddington, near mt. victoria nsw:
100 min. real time, 10 s interval, 24 fps = 240x speedup.
side note: the smallness and unimpressiveness of climbing nuts and cams is stunning, considering how many people trust their lives to them!
stefano padilla used two of my time-lapse videos to create interactive versions. check them out below:
here’s part of the results of an experimental stress physiology class that i took last summer…
in what must have been one of the most open-minded classes i ever took (meaning that we could really influence the topics and experiments), my friend barbara and i studied three aspects of the common wood sorrel (oxalis acetosella): protective leaf movements, photo inhibition and heat resistance.
the following time lapse video shows protective leaf movements, which are a “deliberate” reaction of this little plant to a sudden input of intense, direct sunlight:
on the base of each of three leaflets, turgor controlled pulvinar cells function as a hinge to increase or decrease the leaf angle of the leaflets. such nastic leaf movements can be triggered by a number of exogenous factors such as light (photonasty), temperature (thermonasty) but also by internal
factors.
the concluding course discussion was held as an inofficial “conference of alpine stress physiology”, with poster presentations of all participants.
you can find more information about our oxalis experiments in barbara’s and my scientific poster: Leaf movements, photo inhibition and heat resistance in Oxalis acetosella L. (PDF)
since facebook aparrently doesn’t allow animated profile pictures, i figured i’d share this here instead:
it’s the animated gif-version of a little “project” i did in 2004/2005, basically a 12-month time-lapse video with awful temporal resolution.
my frog spawn time lapse video is on display in the natural history museum of neuchatel in switzerland. it’s part of the temporary exhibition “parce queue”, which is about the animal tails.
anton and i came through neuchatel in mid-july (as part of our bike journey to spain), and seized the opportunity.
the exhibition has a special focus on evolution and features many quotes of charles darwin’s “on the origin of species”.
it’s very interesting, and worth checking out if you get a chance (open until february 2009).
while up on patscherkofel1, two weeks ago, i took the time to make a time-lapse recording of innsbruck, between sunset and darkness.
this time, i used my pentax w60 (night mode), which has an internal timer feature. it took a picture every 15 seconds for 2 hours, which resulted in a speedup of about 200 times in the video.
enjoy! :)
you can also download the video: time lapse: innsbruck nightfall (avi, xvid codec)
soundtrack: tim minchin – not perfect
things you can see in the video: [more...]
