এই গাছ থেকে রক্ত বের হয়। 😱। Bloody Tree.

Hydrogen peroxide V/S potassium permenganate. (Experiment)🌋

(BooM) Potassium permenganate vs glycerin Experiment ☣️.

What’s inside a power supply?? ⚠️

Will it work? এটা কি চলবে?

Litmus paper v/s super glue. (Experiment)

রং পরিবর্তনীয় কাগজ। Experiment with litmus paper's.

লিটমাস কাগজ। Unbox litmus papers.

পাওয়ার সাপ্লাই ভোল্ট মিটার || Mini adjustable power supply with volt meter 24v-3a.⚡ regulated volt.

Mini 80mm vernier caliper scale. (Amazing tool)⛔

Amazing product for students. (Unboxing)

4v Lead acid battery charging circuit local board. 29৳ BDT.

How to make a simple 12v LDR sensor circuit.

How to make a simple lead acid battery charging module with high, low indicator.

How to make a Hand shake shock prank device. ⚡crazy device

How to make a Bluetooth speaker with pam8403. (Crazy-X)

Crazy solar panel. (crazy x)

What is inside a shock chewing gum and experiment.

Super glue vs fevicol😲 (experiment) ||crazy x||

০.২৮ ইঞ্চি ছোট ভোল্ট মিটার। 0.28 inch mini voltmeter.