You can get stethoscope in Dubai at the AL-HIKMA FZCO Supplier.
A stethoscope can also be called a phonendoscope. Hope this helps!
You need a stethscope, listen to the lock, turn a few times to clear. Turn left until you feel a change in resistance. You should hear a slight thump. Turn right and repeat, turn left and repeat. When you hear the thump, write the number down. You will not get the answer first time, it will take a few goes, average the numbers you have recorded, the lock should (will) open.
invented in 500BC before electricity was invented
Gloria Mejia invented it and she invented it in 1998
The CD was invented in 2001 Thomas clamps invented it.
When and where were snickerdoodles invented Why were snickerdoodles invented
who invented the washboard?
Yes, the computer is invented.