#WaveWatchingWednesday
Haven’t posted a #WaveWatchingWednesday in a while — but I am very regularly posting over on my Instagram @fascinocean_kiel. Check it out if you fancy a more regular supply of…
Tag: ice
Insta takeover on snowflake formation
Back in December, I did a takeover of the Instagram account of WissKommSquad, a community of german science communicators. I translated it over new years, but somehow never published it.…
Brine rejection and overturning, but not the way you think! Guest post by Robert Dellinger
It’s #KitchenOceanography season! For example in Prof. Tessa M Hill‘s class at UC Davis. Last week, her student Robert Dellinger posted a video of an overturning circulation on Twitter that got me…
Kiel to Bergen, the mini series. Part 14, in which we are in the snowy part of Bergensbanen minutt for minutt
And now we’ve reached the heights where there is fresh snow! And also where there are wild rivers. Don’t know which I find more exciting :-) Ok, yeah, it’s definitely…
Experiment: Ice cubes melting in fresh water and salt water
Explore how melting of ice cubes floating in water is influenced by the salinity of the water. Important oceanographic concepts like density and density driven currents are visualized and can…
Ice and waves
Waves going through very fresh, still flexible ice. What an exciting topic :-) We had a first look at the picture below in the last blog post already, when we…
Ice forming on Kiel fjord
One thing I really like is watching ice form. Well, maybe not watching the actual freezing (don’t have the attention span for that) but looking at all the different stages.…
Desublimation: When water vapour freezes to ice without becoming liquid in between
One of my favourite phenomena right now is desublimition, or deposition: The phase transition of water vapour to ice that doesn’t go through the liquid phase. It happens when moist…
Frost flowers on ice cream: When you start thinking about phenomena and something really annoying, all of a sudden, becomes really cool.
Frost flowers on ice cream. You must have seen them before: They sometimes occur when you’ve had some ice cream, put the left-overs back in the freezer, and take them out…
Using the “melting ice cube” experiment to let future instructors experience inquiry-based learning.
Using the “melting ice cube” experiment to let future instructors experience inquiry-based learning. I recently (well, last year, but you know…) got the chance to fill in for a colleague…
Frost flowers – when water vapour freezes to ice without going through the liquid phase. Examples “at sea”
Frost flowers! I learned about those in the context of Arctic and Antarctic ice formation. I kinda assumed that ice flowers only formed in salt water, because I remember hearing about…
Frost flowers – when water vapour freezes to ice without going through the liquid phase. Examples on land
What happens when water vapour freezes to ice without going through the liquid phase? Frost flowers!!! That’s when trees suddenly look like this: Btw – the stem of that tree…
Reading ice on a river as tracer for flow fields
For most of my readers it might be pretty obvious what the movement of floating ice says about the flow field “below”, but most “normal” people would probably not even notice that…
Can you make “boring” math or physics exciting by relating it to the adventures of a research cruise in Antarctic? Elin can!
My friend Elin is currently on a research cruise in Antarctica and you really need to check out her blog. She is writing about life at sea, including the most…
Temperature-driven overturning experiment – the easy way
In my last post, I showed you the legendary overturning experiment. And guess what occurred to me? That there is an even easier way to show the same thing. No gel…
Strawberry ice cream crystals
My new favorite thing is to put strawberries through a blender and then freeze small portions of that to eat as ice cream later. It is super yummy plus you…
Ice cubes melting at the bottom of the beakers
Because surely there is one more post in this topic? ;-) For those of you who haven’t heard about the “melting ice cube” obsession of mine, please check out the…
Why folic acid might be good for people, but not so good for tank experiments
I had to do the complete series of experiments, of course… The other day I mentioned that I had used salt from my kitchen for the “ice cubes melting in…
Melting ice cubes, again
Somehow I am stuck on this demonstration! I can’t let go of this experiment. Last time I posted about it, someone (Hallo Papa!) complained about the background and how I…
Conducting experiments at EMSEA14
Kristin’s and my workshop at EMSEA14. As I mentioned before, Kristin Richter and I are running the workshop “Conducting oceanographic experiments in a conventional classroom anywhere” at the European Marine Science…
Melting ice cubes reloaded
Or why you should pay attention to the kind of salt you use for your experiments. The melting ice cubes in salt and fresh water is one of my favorites that…
Help! Weird ice crystals
Geli, Torge, and all you other ice people – do you know what this is? Browsing pictures on my phone, I came across the pictures below that I took a…
Guest post: The mystery of the cold room
Guest post by Kristin Richter! Today I’m excited to bring to you a guest post from Innsbruck, Austria, written by my friend Kristin Richter. Kristin ran the oceanography lab in Bergen…
Help! Equation of State?
Is there an equation of state for hypersaline water at very cold temperatures? A friend of mine is looking to calculate changes in density of a hypersaline Antarctic lake from summer…
Ice can flow like ketchup
Check out the very nice article “ice can flow like ketchup” by Clemens Spensberger on ClimateSnack.com. Enjoy!
Dangers of blogging, or ice cubes melting in fresh water and salt water
When students have read blog posts of mine before doing experiments in class, it takes away a lot of the exploration. Since I was planning to blog about the CMM31…
Early stages of ice formation
Some photos to illustrate the early stages of ice formation. When I was showing my ice formation pictures the other day (also in this post), I realized that even though…
Ice in the ocean – my historical photos
Ice formation in the ocean – using my own photos to tell the story. Recently I talked about using my own photo to explain the generation of wind-generated waves to…
A fetching title for a fetching photo post
Using a photo from one of my research cruises to explain the formation of wind waves. Wind waves are (surprise coming up!) waves generated by wind that blows over the…
On the structure of fresh water and salt water ice
More details on the structure of fresh water and salt water ice. Fresh water and salt water ice have very different structures as I already discussed in this post. In the…
Melting ice cubes – one experiment, many ways (post 3/4)
Different didactical settings in which the “ice cubes melting in fresh and salt water” experiment can be used. In part 1 and 2 of this series, I showed two different…
Properties of sea ice and fresh water ice
Sea ice and fresh water ice have distinctly different properties that can easily be investigated even in big class rooms. In “on how ice freezes from salt water” I talked…
Ice cubes melting in fresh water and salt water (post 2/4)
The “ice cubes melting in fresh water and salt water” experiment the way I usually use it in class. — Edit — For an updated description of this experiment please…
On how ice freezes from salt water
I’ve been wondering how to best show how sea ice freezes for quite a while. Not just that it freezes, but how brine is rejected. By comparing the structure of…
Ice cubes melting in salt water and freshwater (post 1/4)
Experiment to visualize the effects of density differences on ocean circulation. This is the first post in a series on one of my favorite in-class experiments; I have so much…