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hi sir and everyone, what is the purpose of rinsing the outside of the tip of flask by deionized water and this water flowing into the analyte-containing flask?
1:53, I bought a set of blood biochemistry assay machine.. Somehow the technician teach me to aspirate by: after push the plunger button until the 2nd stops. They said that "with 220 ul set volume, 1st stop is to take 200, need to push all way down (2nd stop) to get the 220." is this true? Is there any other standard of micropipette procedure? I need enlightment as I afraid I'm doing wrong procedure for the blood test.
Each algae species may have slightly different requirements than those discussed in the video. We recommend referring to the website, catalog, or care instructions for the specific media, light, and temperature requirements.
Buy lactase drops. I've been using them for years. Also lactase tablets before a meal. No fuss no problem. Scout around some brands are better than others. I've helped a few of my lactose intolerant friends out and they've found life much better.
The way I was taught to use a 10 blade was with the violin bow grip, so as to expose the most amount of edge to the surface as conveniently possible. Is there a reason the pencil grip is preferable for dissection?
There are several ways to hold a scalpel, including the pencil grip, fingertip grip, and palm grip. We use the pencil grip because it is best for making shorter, exact incisions.
I have 3 right now in my office in a box and I swear they have their own personality lol! 😅 Going to put some dirt in it AB’s dried leaves like he suggested. And of course, I’ll share my fruits with them. 🥰🥰🥰
This is actually such a good guide, keeping in mind it was made 13 years ago. Some things I would recommend: Give them a deeper substrate, maybe 2-3 inches which will prevent the substrate from drying up too quickly (roly polies need moisture to breathe because they are crustaceans with gills). Try using organic compost, it’s cheap and good for the isopods, potting soil can sometimes contain artificial fertilizers or pesticides. Leaf litter will be the primary food alongside the substrate so make sure to provide plenty of it!
In the 3:25, after adding the acid, the bottle contains some fraction of the initial iodide ions and some iodine molecules. Is that what it makes it look orange?
