Question

Which substance was used to find directions in olden days by sailors​

Answer 1

$\huge\mathcal\color{green}AnsWer$

• Compasses are used to find directions, the reason behind it is that earth has a magnetic field which helps it to detect direction.
• In the case of a rainy day and no compass, sailors use to detect direction through the magnet.
• The reason is already mentioned that the magnet will attract the earth's magnetic field rays.
• This will help the upper magnet to find the direction in case of a rainy day.