Последние добавленные видео:
でんじろう先生のはぴエネ！
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10 months ago
4174567 10 months ago 1:33もしも鬼舞辻無惨とでんじろう先生が戦ったら
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1 year ago
1377632 1 year ago 3:01The Exploding Prince Rupert's Drop / Mr. Denjiro's Happy Energy! #780
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6 months ago
138563 6 months ago 3:06Is That Floating in Air?: Tensegrity / Mr. Denjiro's Happy Energy! #810
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4 years ago
282878 4 years ago 3:01洗濯のりを使った不思議なオモチャ／A Mysterious Toy Made of Laundry Starch
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5 months ago
263028 5 months ago 3:06How to Throw Playing Cards! / Mr. Denjiro's Happy Energy! #818
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1 year ago
881337 1 year ago 3:01An Ancient Technology: Heron's Fountain / Mr. Denjiro's Happy Energy! #740
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4 months ago
204818 4 months ago 3:06Optical Illusions to Trick Your Brain! / Mr. Denjiro's Happy Energy! #819
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1 year ago
116949 1 year ago 3:01Cooking with Mr. Denjiro! Electric Bread/ Mr. Denjiro's Happy Energy! #785
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2 weeks ago
328041 2 weeks ago 3:06Axe Throwing! / Mr. Denjiro's Happy Energy! #837
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9 months ago
191228 9 months ago 3:01The Magic of the Will-O'-the-Wisp / Mr. Denjiro's Happy Energy! #798
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7 months ago
1184293 7 months ago 1:17【最狂バトル】うーたん vs でんじろう先生【一撃必殺でんじろうボンバー】【ハピエネ】
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1 year ago
1773243 1 year ago 3:01The Principles of a Mirage / Mr. Denjiro's Happy Energy! #750
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5 months ago
286261 5 months ago 3:06A Railgun?! The Accelerating Ball / Mr. Denjiro's Happy Energy! #815
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1 year ago
820119 1 year ago 8:30古代の武器①/Ancient Weapons
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1 year ago
144376 1 year ago 8:20磁力のパワー/Power of magnetism
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11 months ago
183392 11 months ago 8:20科学クッキング/science cooking