06:08

Snow in Japan.2025.1.30 Cute sparrows came.Japanese wild birds.定点カメラ Observacion de aves.

01:13

Snow in Japan.2025.1.30 Bulbul and crow came.定点カメラ Japanese wild birds. Observacion de aves.

01:12

Snow in Japan.2025.1.30 Bulbuls came.定点カメラ Japanese wild bird.Bird watching.Observacion de aves.

04:06

How light travels through a galaxy 13.7 billion light years away?Theory of relativity.

04:19

遠い銀河の光は「時間が遅く進む」を経験するのか？137億光年先の銀河の光の進み方と相対性理論の考察。「高速移動している恒星の光の到達」と「相対性理論の時間の遅れ」との関係。

03:21

Cute sparrows little festival 2025.1.28 Extreme close_up.Japanese wild birds. Observacion de aves.

03:07

光の進み方と時間の関係の考察。相対性理論に関する考察。（下向きの光はレーザービームではありません。下向きの電球です）続編

05:56

光の進む距離と時間の関係に関する解説。相対性理論に関する考察。（この光の解説は、いずれも光源から瞬間発光させたものです）

05:42

The relationship between the distance light travels and time.The theory of relativity.

03:20

相対性理論のここが疑問？赤道付近の人が先に年を取る？「重力の違い」で。

01:39

「相対性理論に異議を唱えない」が良い理由。AIに聞いてみた。

01:49

Cute sparrows little festival.2025.1.22 Japanese wild birds.Bird watching. Observacion de aves.

03:41

Bulbuls and sparrows came.2025.1.22 Smart crow also came.定点カメラ Japanese bird. Observacion de aves.

03:05

Cute many sparrows gathered.2025.1.20 Snow in Japan.定点カメラ Japanese Birds. Observacion de aves.

00:50

Bulbuls and sparrows came.2025.1.17 定点カメラ Fixed camera.Japanese wild birds. Observacion de aves.

01:18

Many sparrows gathered.2025.1.15 定点カメラ Turtle dove came.Snow in Japan. Observacion de aves.Paloma.

02:47

相対性理論に異議を唱える？「時間」編。相対性理論に異議を唱えれるか？

00:35

Sparrows gathered.Crow came.2025.1.11 Snow in Japan.Japanese wild birds. Observacion de aves.

02:56

Dove and sparrows gathered.2025.1.11 Snow in Japan.定点カメラ Japanese bird. Observacion de aves.Paloma.

01:42

Many sparrows gathered 2025.1.11 Snow in Japan. Bulbul also came.Japanese birds. Observacion de aves

02:32

Many sparrows gathered.2025.1.10 Snow in Japan.定点カメラ Close_up.Cute sparrows. Observacion de aves.

00:54

Bulbul and sparrows came.2025.1.10 Snow in Japan.Japanese birds.Bird watching. Observacion de aves.

02:46

Cute sparrows gathered.2025.1.8 Turtle dove also came.定点カメラ Observacion de aves.gorrion.Paloma.

02:21

Turtle dove came.2025.1.5 Close_up shot.Japanese bird.Pure dove. Observacion de aves.Paloma

01:45

女性アイドルを応援するメリットとは？ファン活動のメリットとは？AIに聞いてみた AIはポンコツか？シリーズ

02:02

Brown-eared bulbul came.2025.1.3 Sparrows also came.Sparrows little festival? Observacion de aves

03:15

Why the speed of light is the fastest.Why can't humans exceed the speed of light?

04:41

Cute sparrows gathered.2025.1.1 Many sparrows came.Fixed camera.定点カメラ Japanese. Observacion de aves

03:34

光速が最速なのはなぜか？人間が光速を超えられない理由とは何？

02:25

光速超えかも？さらに4つ挙げてみた「改訂版」。「超光速かも？」と思われるものさらに４つを紹介してみた。前の動画の改訂版。

02:27

Sparrows little festival?2024.12.29 A little snow is falling.Japanese bird. Observacion de aves.

01:45

Cute sparrows came.2024.12.29 Extreme close_up.Some parts are muted due to noise.Observacion de aves

01:29

Cute sparrows came.2024.12.29 Japanese birds.Extreme close_up shot. Observacion de aves.Gorrion.

02:05

光速超え、さらに4つ挙げてみた。光より速いものはあるか？

02:36

Here are four more things that go faster than light?Is there anything faster than light?

02:36

Cute sparrows came.2024.12.24 定点カメラ Fixed camera.Japanese bird. Observacion de aves.Gorrion.

01:18

Turtle dove came.2024.12.24 A wandering turtle dove.定点カメラ Fixed camera. Observacion de aves.Paloma.

04:03

Introducing seven things faster than light.Is there anything faster than light?

04:27

光より速いものとは？超光速かも？とりあえず７つ挙げてみた？

02:32

Cute sparrows came.2024.12.20 定点カメラ Fixed camera.Extreme close_up.Japanese bird. Observacion de aves

04:00

Sparrow festival.2024.12.14 Japanese sparrow is cute.Close_up shot. Observacion de aves.Gorrion.

01:52

Smart crow came.2024.12.14 Cute sparrows also came to the fence.Japanese bird. Observacion de aves.

01:25

Sparrow's Little Festival.2024.12.9 Close_up.Japanese sparrows are cute. Observacion de aves.Gorrion

01:30

Turtle dove came.2024.12.9 Extreme close_up shot.Japanese bird.Pure dove. Observacion de aves.Paloma

02:25

相対性理論に異議を唱える？相対性理論とはなに？手短に紹介

05:21

Cute sparrows gathered.2024.12.6 Extreme close_up.定点カメラ Japanese cute sparrows. Observacion de aves

01:11

Smart crow came to the fence.2024.12.5 定点カメラ Fixed camera.Japanese wild bird. Observacion de aves.

03:23

目力とは何？目力が強い人の特徴とは？AIの応え。AIはポンコツか？シリーズ

05:00

Dove and sparrows gathered 2024.12.4 定点カメラ Japanese birds came to the fence. Observacion de aves

02:46

Japanese birds gathered on the fence 定点カメラ Fixed camera Observacion de aves Sparrow.Turtle dove.Crow

02:51

Turtle dove came.2024.12.1 Close_up shot.Japanese bird.Pure dove. Observacion de aves.Paloma. Relax.

02:25

Sparrow's Little Festival?2024.11.29 Extreme close_up.Japanese bird. Observacion de aves.Gorrion.

01:28

Turtle dove came to the fence.2024.11.28 定点カメラ Fixed camera.Japanese bird. Observacion de aves.

04:31

Sparrows gathered on the fence.2024.11.27 定点カメラ Fixed camera.Japanese bird. Observacion de aves.

02:18

Turtle dove came.2024.11.25 Dove came to the fence.Japanese bird. Observacion de aves.Paloma.Gorrion

03:38

Sparrow's Little Festival?2024.11.24 Extreme close_up Turtle dove also came. Observacion de aves.

01:39

Cute sparrows came.2024.11.24 Extreme close_up shot.Japanese bird. Observacion de aves.Gorrion.

02:46

Cute sparrows came.2024.11.23 Extreme close_up shot.Japanese sparrows. Observacion de aves.Gorrion.

02:12

Sparrows gathered on the fence.2024.11.23 Extreme close_up.定点カメラ Japanese bird. Observacion de aves.

02:43

Turtle dove came to the fence.2024.11.22 A few sparrows also came. Observacion de aves.Paloma. 定点カメラ