[sriramkannan95]

http://topperlearning.com/horlicks/index.php?option=com_content&view=category&id=57:einsteinchen&Itemid=93&layout=default&flvpath=Einsteinchen_Wormholes

how to download this video?

[Stream Recorder]

topperlearning.com uses simple progressive HTTP .flv streams. You can copy such streams from the cache of your web-browser. You can also download such streams with many programs, including freeware Fast Video Download (http://www.applian.com/fast-video-download/) extension for Firefox (works in Windows, Linux, Mac OS), freeware Freecorder 4 (http://all-streaming-media.com/record-audio-stream/FreeCorder-Toolbar-Free-sound-recorder-software-Windows.htm) (Windows), Jaksta Free Media Recorder (http://all-streaming-media.com/record-video-stream/Jaksta-Free-Media-Recorder-freeware-download-capture-video.htm) (Windows), paid Replay Media Catcher (http://all-streaming-media.com/record-video-stream/Replay-Media-Catcher-HTTP-RTMP-FLV-MP3-ripper-recorder.htm) (Windows).

More:
FAQ: How to record/download/capture/save Adobe Flash .FLV / .MP4 video HTTP stream from embedded player (http://all-streaming-media.com/faq/recording-media-stream/faq-record-download-capture-save-flash-flv-video-http.htm)