{"type": "rich", "version": "1.0", "html": "<iframe src=\"https://quotewise.io/embed/quote/wutx77/\" width=\"600\" height=\"200\" frameborder=\"0\" allowfullscreen title=\"The general equations are next applied to the case of a magnetic disturbance propagated through a...\"></iframe>", "width": 600, "height": 200, "title": "The general equations are next applied to the case of a magnetic disturbance propagated through a...", "author_name": "James Clerk Maxwell", "author_url": "https://quotewise.io/o/James_Clerk_Maxwell/", "provider_name": "Quotewise", "provider_url": "https://quotewise.io", "thumbnail_url": "https://quotewise.io/og/q/wutx77.png", "thumbnail_width": 1200, "thumbnail_height": 630, "cache_age": 86400}