Cross Polarized Foldscopy!

Hello Everyone!

I’ve been dying to try out some polarization foldscopy!! and finally the wait is over! Just last to last week Laks Sir sent me some polarizing filters! I’d been collecting compounds from our Chemistry department and waiting eagerly for the filters to arrive. Here are the first few pictures I took using the cross polarizers

                                    Urea Crystals

         Magnesium Oxalate crystals
         Trisethylenediamine Nickel II Sulphate

And now finally something optically inactive! Nickel DMG


Laks Sir had suggested me to try out a technique known as melt-recrystallization. I wanted to capture the crystallization happening through my foldscope. Here are some videos I recorded,

P.S: Watch the videos in HD. Theres an option available to change the video settings besides the Youtube logo.

Here’s the way I recorded the recrystallizatio

I prepared a dry mount of Aspirin. Then, I heated the slide with the help of a lighter to melt the Aspirin. Once it melted, I quickly observed it through my foldscope while recording the the aspirin getting beautifully recrystallized. 🙂

Hope you all like it!

Have Fun Foldscoping!

Mitali Patil

Second Year Undergrad,

Ramnarain Ruia Autonomous College, Mumbai.


3 Comments Add yours

  1. laksiyer says:

    @Mitali. The second video is one of the most amazing ones I have seen in recent times.. You have perfected the cross polars.. really love the range of colors. What if you view this in a single wavelength light, perhaps a sodium vapor lamp if you have them sitting around.

  2. Manu Prakash says:

    What an incredibly beautiful work @Mitali. I am so proud to see this video – thanks @laks for sending the polarization filters – they will be standard issue in all future kits 🙂

    I am just thrilled beyond limits. Beautiful execution – now you need to get tons and tons of medicines and do this for many of the compounds. You will see that they will look completely different. The explosion of colors is absolutely beautiful. What a wonderful world we live in – where we are all so far away; and can still do science together.

    Keep exploring..


  3. Mitali says:

    Thankyou for the encouraging comments and suggestions 🙂
    Can’t wait for exams to get done. I’ve got tons of stuff to try out.

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