Salt Water Battery ( Part 1 )

I have seen many more articles on internet about salt battery, I was curious and tried it.

My first experiment was failed. I tried to fill a large container with water and salt. And then i put copper and aluminium into water for positive and negative pole. I have measuring and the result is only 0.7 Volt. I knew that this is not enough to turn on the LED. You can look at the picture below.

My second experiment was succeed, I took four small cups and fill them with salt water. After that I tried to connect each positive and negative pole thus forming a series circuits. And then...taa..daaaaa..........

my red LED has been lit. I have measuring and the result is 2.8 Volt. This voltage value is enough to turn on the LED.

I have observed that LED still lit after more than 5 hours. For more detail you can watch this video.

Thanks for watching and visiting my blog. :)

Simple Lamp Flasher

Long time ago, some student in my class said story about " How to make simple Lamp Flasher ". Of course i'm still on High School. My Friend said that we only need Incandescent Lamp and TL Starter to made this.

One day i got little time to made it, and somehow i'm happy with this experiment, I know some people maybe will laugh to me about this. Because it's too simple and many people ever did it. But I believe that sometimes, simple things are able to make you happy.

This is my lamp and TL starter, I Have been bought in an electrical store near my house.

And I have to assemble like this.

You can watch this video to more detail.

Thanks for watching and visiting my blog. :)

Beep Buzzer

One day, i visited my favourite shopping place in Surabaya my love city, Of course no other except 

"Genteng Market". I usually walk trough several alley and looking for unique something or some electronics part. That day i was looking for " Piezo Buzzer " to my favourite store. Sellers at the store ask to me,

Sellers  : What are you looking for ?

Me        : I was looking for " Piezo Buzzer" for around 9 Volt or 12 Volt.

Sellers  : There are two type, Buzzer with sound "Beeeeeep" or "Beep ... Beep .... Beep" ?

And then i was currious, I usually found Buzzer with sound "Beeeeeep" then i knew that evidently it has two type. Without much thought, i just said to sellers,

Me         : I will buy both of them, one for "Beeeeeep" and one for "Beep... Beep.... Beep".

Sellers   : Okay, the prize of one buzzer is Rp 7000. So total price is Rp 14000.

Me         : Okay, thanks.

This is photo of it with top view

And with bottom view

Both of photos is only Buzzer with sound " Beep ... Beep ... Beep " because i had forgotten to put another Buzzer.