Just wanna share about this one nice article i just read from elperfecto.com about this tomato battery.
I was amazed about this tomato battery that can power up the LED and buzzer.  When i was in high-school, i remember we did an experiment about lemon batt.  powering a small calculator.  We had about approximately 10 lemons [...]

Just wanna share about one article i read from theresilientearth.com about Shiva The Dinosaur Killer.
Asteroid impact is one of scientist’s theory about dinosaur  extinction. You probably heard about this many times and maybe you are wondering if that was the asteroid that hit the Northern Arizona and left a crater as big as a football [...]