What is really the difference between a dream and a thought? I mean, when you look at it, they both exist in the same abstract realm although access depends on the frame of mind.

Anyway, that’s by the way. Here, we present to you some popular inventions that were conceived in a dream but has materialised in the real world and is helping mankind.

1. Dmitri Mendeleev

Invention: Periodic Table

Dmitri's quest to organize the 65 known elements into a standard table remained elusive for years. But, he is said to have earlier realized that it's organisation has something to do with atomic weights of the elements.

His obsession with solving the puzzle probably fused it's manifestations deep into his neurotransmitters and made him dream about it. He is quoted as saying -

2. Niels Bohr

Invention/Discovery: Atomic Model

According to a paper titled “Pillow-Talk: Seamless Interface for Dream Priming Recalling and Playback,” written by Edwina Portocarrero at the Massachusetts Institute of Technology (MIT), Niels Bohr was quoted as saying that he
got the idea to develop the atomic model in a dream.

In the dream, he "developed the model of the atom based on a dream of sitting on the sun with all the planets hissing around on tiny cords.”