Is dog playing with laser pointer strange?

Many times in the history of science, people become good friends after competing with their enemies in scientific research. But the laser diodes are made by different research groups, and the best friends are still best friends. This is an unforgettable history. At the time, he said, several research groups in the United States were trying to make solid-state lasers. They are good friends and have a lot of competition. Many times in the history of science, people become good friends after competing with their enemies in scientific research. But the laser diodes are made by different research groups, and the best friends are still best friends. This is an unforgettable history. At the time, he said, several research groups in the United States were trying to make solid-state lasers. They are good friends and have a lot of competition. Many times in the history of science, people become good friends after competing with their enemies in scientific research. But the laser diodes are made by different research groups, and the best friends are still best friends.