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Scientists have been studying the four fundamental forces (gravity, electromagnetism, the strong force, and the weak force) since the 1950s, but new research indicates that there may be a fifth. Learn more in this episode of BrainStuff. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers
https://www.listennotes.com/e/225dfdfa9a3048e393b173a8ec28e9c2/