הרצאה את עצמנו פופולרי fourer אמת פרוספקטיבה שונות
Joseph Fourier - Wikipedia
Mathigon on Twitter: "Joseph Fourier was born 252 years ago #onthisday. The French mathematician and physicist invented Fourier series to explain vibrations and heat transfer. He also discovered the Greenhouse effect! https://t.co/TgUNbj99XP