Thoisoi
Thoisoi is Maxim Bilovitskiy, an Estonian science creator and author who explains chemistry through filmed experiments on his Russian and English YouTube channels.
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Latest
Maxim’s happenings, collected from public sources, plus his backstory and Starbook, where fans write.
Known for
- ThoiSoi: The Chemistry of Metals and Their Compounds2017 · Author · Russian-language book
AST - ThoiSoi: Crystals, Gases and Their Compounds2018 · Author · Russian-language book
AST - ThoiSoi: Chemistry in Experiments, Gases and Solutions2021 · Author · Russian-language book
AST - Molten SALT2026 · Creator · Thoisoi2 video
YouTube
Overview
- Name
- Maxim Bilovitskiy
- Based in
- Estonia
- Work
- Science videos, chemistry books and scientific photography
- Channels
- Thoisoi in Russian; Thoisoi2 in English
- Education
- Master’s degree from Tallinn University of Technology
- Recognition
- Wiki Science Competition winner in 2017 and 2021
Mini bio
How it started.
Maxim began by filming simple chemistry experiments, including crystals grown from copper sulfate and reactions involving potassium permanganate and glycerin. His publisher describes the aim: Russian narration that made each experiment clear, visually engaging and easy to follow.
Finding an audience.
He launched the Russian-language Thoisoi channel in 2011 and added an English-language channel in 2014. In his Easyfind interview, he recalled buying a camera for a hobby, noticing viewers’ interest and working toward regular uploads. Those experiments grew into channels followed by millions.
From screen to page.
His books carry the same interest in visible transformations into print. AST published his volume on metals and their compounds, followed by books about crystals, gases and solutions, pairing experiments with photographs, formulas and explanations.
Science through the lens.
His work also reaches scientific image competitions. A freezing water drop won the non-photographic media category of Wiki Science Competition 2017. His Wilson cloud chamber video won the same category in 2021, showing particle tracks that make otherwise invisible radiation visible.
Creditschronological, newest first
Screen
- 2026ThoiSoi2Cast and director, as credited by Tubi
Awards
- Wiki Science Competition 2021International winner, non-photographic media, for his Wilson cloud chamber video. Results announced in 2022.
- Wiki Science Competition 2017International winner, non-photographic media, for a video of a water drop freezing in a very cold environment. Results announced in 2018.
Quotes
I always enjoyed chemistry, as well as many physical processes.Maxim Bilovitskiy, Wiki Science Competition
In his winner’s commentary, he described the liquid nitrogen experiments that led to his freezing water drop video.
Trivia
- He judges explanations by whether his mother, a Russian literature teacher, can understand them.
- He competed in chemistry Olympiads while at school.
- His winning freezing water drop video was filmed with a 90 mm macro lens and side lighting.
- His cloud chamber project used an ordinary kitchen pan and a small glass fish bowl.
Find Maxim
Watch his experiments in Russian or English.
Are you Thoisoi?
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