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  1. Manu Prakash says:

    Dear @Rathi2001,

    Wonderful to finally see your post. Good job.

    I am quiet surprised by the video. It’s very interesting that the cell wall is so nicely preserved but the cellular matter almost looks empty. Now I am wondering, could you share how you actually prepared the sample.

    Layout of a good post should include all the simple details. Here is a simple template I am including:
    1. Start with a question: state why you choose to look at the onion peel. It’s crucial to start with a question, even without knowing what you might find. It’s also Ok to abandon the question and choose something else – based on observations. But always good to share what you are thinking.

    2. What did you do/ methods section: State briefly details of how you prepared the sample. This allows anyone else to replicate your study and allow them to get a result either similar or different from you. This is usually called a methods section of a paper.

    3. Video/Data/Images: Include both macroscopic (just a normal photo of an onion) and a microscopic image. This allows someone to know what sample was used. Was it red onion or green onion. What portion of the sample did you collect?

    4. Observations: This is the most crucial part of the post. It’s important to notice some things. What do you find interesting about the video? What question race through your mind when you look at that video? It’s crucial to identify these observations since people can check your observations. Observations are kind of like raw facts: so I would think that the fact that inside of the onion cell is almost empty – is a very strange observation to make.

    5. Conclusions/discussion: End the post with a few sentences of where you would go next. Say something about what might you do differently?

    6. Technical note: One comment on your video – I think your magnetic coupler is not aligned perfectly to your cellphone camera. Take the tape and stick it again (always use fresh tape) – and make sure they align perfectly. When you do that, you will see that the image will be perfectly aligned in the center. Sometimes, you can also zoom in a little bit in the video, so you see the whole data on a square screen.


    Can you take a shot at modifying your post based on this feedback 🙂 I am always here – but so are thousands of other Foldscope users who can help you refine your techniques and observations.

    Finally, science is not learned from books – but by making observations in nature. Every fact that is written in a textbook was an observation someone made; and they interpreted it in a certain way. If you can learn how to do that – you can do incredible things in this world.

    Can’t wait for your next post. Great job..


  2. rathi2001 says:

    Thank you for your advice manu sir

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