Thinking @ Speed of Light

I own a book shop in Nainital and I live in a house just behind (attached to) the shop. As you enter my house there is a cupboard that we use to keep any spare cash (Small amounts that would be sent to the bank the next day) we might have form the day's sale. About 4 months back my mother started to notice money disappearing form the cupboard. First time my mum told me about the issue, I brushed it aside thinking it might have been a calculation error from our side. Then the same thing happened again another 2-3 times. This was more than a coincidence so we stopped using the cupboard for the purpose of keeping any sort of cash but we still did not know who was taking the money. We have a few staff members at our place (all of them had been with us for a considerable amount of time - some of whom had been working at our place for more than 20 years). Since the only people who had any access to the cupboard apart form the family were the staff member we suspected that one of them wa...

A few days ago I was stuck in one of those YouTube loops (happens once a month) and I came across this awesome video on the  Prince Rupert's Drop  by SmarterEveryDay (Excellent channel BTW). About 3:00 minutes into the video they use something called a Polariscope to check out the stresses built up inside the Prince Rupert's Drop. Watching that I realized that I had all the things needed to build this at home. You need the following things for creating a Polariscope : 1) A polarized light source (White in color preferably) - Since almost all LCD's use polarized light to display images you could use your iPad or Laptop screen displaying a white image. I went for my 22" monitor as I needed a bigger surface. 2) A transparent object - Not all objects work well for this as some don't really have that much stress.            - Things that work well - Glass statues, use and throw forks and knives, glue sticks, etc.   ...

I was just browsing around the internet and came across this video  which described how to make your own Makey Makey board using an  Arduino Leonardo . I had all the components laying around at home so I decided to make my own. Here is a video where i used 4 glasses of water to play some drums from  http://www.virtualdrumming.com/ . No I can't play music, well not right now anyway :-). The Makey makey is basically a circuit that converts anything conductive - even slightly conductive (Metal, Coins, Bananas, Humans, Coke Cans, Glass of Water, etc.) into a button on your keyboard. You connect a wire from the circuit to the object you want to make into a button (key). Connect your self to the wire from the circuit labeled "hand". Done. Now the moment you touch the object it will send a key-press (example 'a') to your computer via USB.  Using the Arduino Leonardo you can convert up-to 6 objects into a key at any given tim...

Includes:  1 - Pictures using custom DIY bokeh filter(s) 2 - Pictures using Pinhole for DSLRs 3 - Green laser and Prism 4 - Macro shots using Lens Reversal Technique 5 - Cute Baby pics If you want to checkout the ISO, Shutter Speed, Focal Length and Aperture for any of these then goto  photos.abhimanyukumar.in