context: On Tesla's 75th birthday in 1931, Time magazine put him on its cover. The cover caption "All the world's his power house" noted his contribution to electrical power generation. He received congratulatory letters from more than 70 pioneers in science and engineering, including Albert Einstein.
question: টেসলা যে ধরনের প্রযুক্তির উপর কাজ করেছিল তার ক্যাপশনটি কি উল্লেখ করেছিল?
answers: electrical power generation electrical power generation electrical power generation