10 fascinating things that everyone has probably heard about, but few have seen (11 photos)

The world is full of strange and unusual objects and phenomena. In this post you will see interesting objects that you have probably heard about. Perhaps the curious images in this post will add to your knowledge base.





1. This is a geometry textbook with volumetric details from 1570



In 1570, the British Henry Billingsley translated thirteen books of Euclid, and published a completely unique edition of geometry, with volumetric figures.

2. This lead container contained a radioactive pill that my mother had to take to fight thyroid cancer





3. This is how excavators work in the mountains



4. Treatment for allergic rhinitis



5. A dog that helps create and test computer games



6. This butterfly is double-sided gynandromorph



Gynandromorphism is a developmental anomaly in which large areas of the body have the genotype and characteristics of different sexes. It occurs as a result of abnormal distribution of sex chromosomes.

7. Chocolate pastilles with iron, arsenic and strychnine, produced in the early 19th century



French doctors believed that strychnine, like quinine, could be used to treat various ailments, including malaria. Fortunately, their delusion did not last long. Arsenic, despite its notorious toxicity, was a therapeutic agent that had been used since ancient times to treat many diseases.

8. A 100-Year-Old Refrigerator



9. This is what a piano looks like if you remove its outer part



10. A Toilet on a Spaceship



In The Soyuz spacecraft have a utility compartment that contains everything needed for a long flight: scientific instruments, food supplies, a sewage disposal unit (toilet), spacesuits for extravehicular activities, sleeping bags and other household items.