Nobody knows if you’ll escape trouble by knocking on wood, but it is true that a cricket can act as a thermometer and a goldfish can not only decorate your apartment, but also perform the functions of a minibar. Sounds weird? Maybe. But, these things really are possible.
We collected 8 tips that, in theory, can be useful if you don’t have a more comfortable solution to your problem. The more absurd the information sounds, the easier it is to memorize. Read the article to the end and you’ll notice that you feel sleepy after looking at the soap bubbles.
1. A cricket instead of a thermometer
How do you figure out what the temperature is outside if you don’t have a thermometer, a smartphone, or a TV-set around? Just listen for a cricket. Physicist Amos Dolbear was the first one who started listening to crickets.
In order to figure out the temperature, just count the number of sounds that the insect makes within a certain period of time. However, take into consideration the kind of a cricket, it’s better to find a wood cricket for more precise results. Once you find it, if you’re trying to figure out the temperature in Fahrenheit, add 40 to the number of sounds you count within 15 seconds. If you’re trying to figure out the temperature in Celcius, add 5 to the number of sounds you count within 8 seconds.
2. A dolphin instead of a pregnancy test
It’s well known that sea mammals communicate using sound waves. The sound waves in dolphins’ heads work like radar and their main function is to inform other dolphins about threats. It’s also possible for them to detect pregnancy using this method.
According to experts, thanks to echolocation, dolphins can detect a developing fetus and will display an interest in pregnant women. They swim over to the pregnant woman and make buzzing sounds around her belly or they press their noses against it and start “vibrating.”