Which three countries are the most developed in science and technology in the world at present?

On the global scientific scorecard, the United States topped the list with 147652 patents. Among the most technologically advanced countries in the world, the United States ranks first in terms of the number of inventions, supporting facilities and defensive measures. All the above achievements contribute to human development. However, the United States also invented nuclear weapons and used them to destroy the enemy and occupy the country. Japan, a leader in science and technology, ranked fifth with 5,465,438+070 patents and more than 2 million published papers. Japan is the most technologically advanced country in Asia and the world. Japan is developing some super-advanced technology products, such as elevators that can send anyone to any floor in one second. Everything will be presented in holographic images, just like the ultimate transmitter. In terms of weapons, Japan is developing equipment that can emit lasers and be suspended in the air, just like Gundam's weapons in comics. Rumors even say that Japan is developing a giant barrier that can protect the whole of Japan from nuclear bombs and tsunamis. Japan is an absolute technological power. Sony, Fujitsu, Toshiba and Toyota are all Japanese companies. Germany has allocated more than $654.38+002 billion in research and development, which is a country full of ideas, inventions and innovations. The famous scientific and technological achievements made by Germans include aspirin, the first programmable computer Z3, the branch of bacteriology founded by robert koch, chip cards, jet engines and contact lenses that we use every day, and so on.