Show newer

A timelapse showing the incredible movement of a growing vine, exhibiting both nastic movement to find, and then a thigmotropic response to grasp and hold.

Credit: Roger P. Hangarter

plantsinmotion.bio.indiana.edu

#botany #nature #plants #science

Banjul, The Gambia

NASA's Terra spacecraft shows Banjul, the capital of The Gambia; it is located on St. Mary's Island, where the Gambia River enters the Atlantic Ocean in western Africa.

Credits: NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team

Instrument: Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)
Mission: Terra
Tags: Earth
More: photojournal.jpl.nasa.gov/cata
#space #NASA #JPL #photography #astronomy #astrodon

If you are interested by those #photometeor, here is an amazing #picture of the #Sun with so many of them, as annotated on the second picture.

They are the result of #Sun's reflections and refractions into tiny ice crystals (in clouds or fog) of various shapes, which act as mirrors or prisms.

source: thisiscolossal.com/2019/12/mic

credits: Michael Schneider

#photography #Halo

Show thread

@mijustin The "move fast" approach works well only when everyone involved is focused, motivated and know what they are doing. They know the risks, they know what to look for, they know how things work. An example would be a race car team.

Instead most managers opting for the "move fast" approach are like someone who had a few drinks at the bar and now thinks they are world-class drivers. So they get in the car, drive too recklessly and crash it.

And it doesn't help that toxic business cultures tend to reward this sort of behavior. It's flashy, it's "manly", it's "decisive", it's "passionate". So disasters caused by such behavior tend to be forgiven as "we did our best but luck was against us".

Farm Service Administration photos of erosion in Mississippi during the Great Depression. Deforestation and cotton cultivation had exposed and depleted the state's incredibly fertile soil, much of which had been deposited by the meandering Mississippi River over millennia.

#history #histodons #environment #envhist
@histodons

Groundbreaking of NACA's (later NASA's) annoying wind tunnel happened on this sad day in 1939. Russell Robinson supervised it.

I have not had a quiet day since.

Global field observations of tree die-off reveal hotter-drought fingerprint for Earth’s #forests.

Earth’s forests face grave challenges in the #Anthropocene, including hotter droughts increasingly associated with widespread forest die-off events.

Frequency of the observed mortality-year climate conditions strongly increases nonlinearly under projected warming.

Forests are dying due to #climate change.
nature.com/articles/s41467-022

#CAD for Gardeners
🧵…

This world needs more wildlife, more wildlife gardens, more sustainable food.

🐛🌳🧑‍🌾

I’m a #wildlife and food #ForestGarden #designer, and I use #CAD. A lot.

CAD (Computer Aided Design) is a really useful tool for #GardenDesign, because you can figure out #tree spacing and quickly calculate lengths for #windbreak hedges & areas for #GroundCover & #NativePlant #WildFlowers

A plan also communicates ideas with partners, and documents plants to help with maintenance

1/8

This is why boats head to the Canary Islands to sail West to the Americas, and return via Bermuda and the Açores: the Trade winds.
Video from earth.nullschool.net/#current/
#sailing #oceans #wind

for M 6.4 in Mendocino triple junction (Triangle of Doom) region

aftershocks suggest left-lateral strike-slip in Gorda plate

felt broadly, about 92%g in Ferndale

read more from last year's report
earthjay.com/?p=10125

earthquake.usgs.gov/earthquake

hi res map here

earthjay.com/earthquakes/20221

Vortex construído no #Rstats com o pacote {aRt} e parâmetros aleatórios.

I show this bug every year to my intro entomology students to see if they can figure out what body part all that undulating spiny weirdness is.

Heteronotus sp. treehopper, Ecuador.

#Entomology #Insects

I just finished a bowl of cashews and thought I'd share a pic of a cashew apple that I got to eat in Costa Rica. The yellow part is a pseudofruit (because it lacks seeds) and is absolutely delicious. Note that you should wash your hands if you touch the shell (the actual fruit) because it contains urushiol just like poison ivy (both are in the Anacardiaceae). The seeds have this chemical, too, but it's removed by cooking. #fruit #nuts #botany #cashew #plants.

Maps of neighborhoods along Roosevelt Avenue-some of the most diverse areas in Queens, New York City. Made using #RStats and #OpenStreetMaps

This book is hard to find (and rather expensive when found) but the drawings are gorgeous.
#sciArt #RadivojKrstić #cellAnatomy

New here on Mastodon. My group at University of Virginia studies #devbio and #evodevo of adult traits in #zebrafish and other species, mostly pigment pattern and scales. Also work on skeleton, postembryonic stem cells, behavior, natural history, other topics. Always looking for new weird stuff.

Following on from the #30DayChartChallenge, I've written (another) blog post comparing my favourite R packages for making maps and visualising spatial data in R!

🗺️🗺️🗺️

nrennie.rbind.io/blog/2022-12-

#RStats #RSpatial

Show older
Qoto Mastodon

QOTO: Question Others to Teach Ourselves
An inclusive, Academic Freedom, instance
All cultures welcome.
Hate speech and harassment strictly forbidden.