Constructing Magical Square Using Prime Numbers

Whether it’s possible to construct a magic square using the first nine prime numbers (here counting 1 as prime):

1 2 3 5 7 11 13 17 19

Is it?

Find the possibility here!

Impossible Magical Square

What was the task given?

That's impossible task. All the listed prime numbers sums together to 78. For square to be magic, sum of each row & column must be equal. In this case, it should be 78/3 = 26.

For sum of 3 to be even, 1 must be even & other 2 odd (or all even). All 3 odd can't sum even.

In listed prime numbers there is only 1 even number i.e.2. Hence, for other 2 rows/columns we can't have even sum.

Creative Use Of Video Camera On Smartphone

Do you ever have thought on how things appear or disappear on a screen in a movie/serial? Well, it's not a rocket science you can do it with your smartphone camera. And if you have good video editor then you can make it like a professional.There is interesting video pause feature that every smartphone camera has which can be used to achieve this.

1. Just open camera on your smartphone.

2. Switch to the video recording mode.

3. Point to the object you want to make disappear from frame. (Or frame in which you want to bring the object)

4. Start the video recording & record for a while.

5. Now tap on 'pause' & pull out the object out of the frame.(Put in the object in frame if you decided to make it appear) 

6. Again start recording the video & record as long as you want.

7. Remember you need to hold smartphone camera steady (using stand would be better) on the frame from which object is disappearing (or in which appearing). 

Smartphone

Countless ways to produce creative videos in this way. You can make object appearing & disappearing again & again in single video. The object above can be replaced by act. For example an object can appear at different locations in the same frame if 'act' of moving it from one to other location is 'removed' using above technique. With some video editing apps you can add special effects at those 'magical' instances like a pro!