http://en.wikipedia.org/wiki/Leonardo_da_Vinci
http://namecchan.deviantart.com/art/Leonardo-da-Vinci-349514420
http://www.forbes.com/sites/anthonykosner/2013/08/29/leonardo-davinci-marketing-genius/
www.livescience.com
www.geniusstuff.com/blog/list/10-leonardo-da-vinci-inventions
"Leonardo's Machines - Da Vinci's Inventions revealed" by Domenico Laurenza Book found in school library
https://www.youtube.com/watch?v=qZ2iR3vCN-w
https://www.youtube.com/watch?v=wTwl-GrNTH8
"Journal of inventions: Leonardo da Vinci" by Jaspre Bark
"commons.wikimedia.org"-photograph
www.allspectrum.com- photograph
www.turbosquid.com- photograph
http://www.leonardodavincisinventions.com/mechanical-inventions/leonardo-da-vinci-ball-bearing/ - info on the ball bearing
www.leonardodavincisinventions.com - picture
passion-usinages.forumgratuit.org - picture
www.fiddlersgreen.net -picture
historyculturebybicycle.blogspot.com -picture
azorenflug.blogspot.com -picture
https://www.google.co.uk/search?q=robotic+knight+da+vinci&source=lnms&tbm=isch&sa=X&ei=MdVxU6mtLcTC7Aa744GICw&sqi=2&ved=0CAYQ_AUoAQ&biw=1280&bih=929#q=33+barreled+organ+leonardo+da+vinci&tbm=isch&facrc=_&imgdii=_&imgrc=wJ_vdah1vFU6yM%253A%3B3ld62K524FfrrM%3Bhttp%253A%252F%252Fwww.sndgems.com%252FLeonardo-da-Vinci%252F300px-leonard_da_vincic2b4s_organ_gun.jpg%3Bhttp%253A%252F%252Fwww.sndgems.com%252FLeonardo-da-Vinci-Michelangelo.htm%3B300%3B223 picture
https://www.google.co.uk/search?q=robotic+knight+da+vinci&source=lnms&tbm=isch&sa=X&ei=MdVxU6mtLcTC7Aa744GICw&sqi=2&ved=0CAYQ_AUoAQ&biw=1280&bih=929#facrc=_&imgdii=_&imgrc=hoPoar59GCfJsM%253A%3BMOdtTn6YH-I90M%3Bhttp%253A%252F%252Fwww.leonardo-da-vinci-biography.com%252Fimages%252Fleonardo-da-vinci-robot-knight.jpg%3Bhttp%253A%252F%252Fwww.leonardo-da-vinci-biography.com%252Fda-vinci-robotic.html%3B309%3B476 picture
http://www.lairweb.org.nz/leonardo/parachute.html
http://namecchan.deviantart.com/art/Leonardo-da-Vinci-349514420
http://www.forbes.com/sites/anthonykosner/2013/08/29/leonardo-davinci-marketing-genius/
www.livescience.com
www.geniusstuff.com/blog/list/10-leonardo-da-vinci-inventions
"Leonardo's Machines - Da Vinci's Inventions revealed" by Domenico Laurenza Book found in school library
https://www.youtube.com/watch?v=qZ2iR3vCN-w
https://www.youtube.com/watch?v=wTwl-GrNTH8
"Journal of inventions: Leonardo da Vinci" by Jaspre Bark
"commons.wikimedia.org"-photograph
www.allspectrum.com- photograph
www.turbosquid.com- photograph
http://www.leonardodavincisinventions.com/mechanical-inventions/leonardo-da-vinci-ball-bearing/ - info on the ball bearing
www.leonardodavincisinventions.com - picture
passion-usinages.forumgratuit.org - picture
www.fiddlersgreen.net -picture
historyculturebybicycle.blogspot.com -picture
azorenflug.blogspot.com -picture
https://www.google.co.uk/search?q=robotic+knight+da+vinci&source=lnms&tbm=isch&sa=X&ei=MdVxU6mtLcTC7Aa744GICw&sqi=2&ved=0CAYQ_AUoAQ&biw=1280&bih=929#q=33+barreled+organ+leonardo+da+vinci&tbm=isch&facrc=_&imgdii=_&imgrc=wJ_vdah1vFU6yM%253A%3B3ld62K524FfrrM%3Bhttp%253A%252F%252Fwww.sndgems.com%252FLeonardo-da-Vinci%252F300px-leonard_da_vincic2b4s_organ_gun.jpg%3Bhttp%253A%252F%252Fwww.sndgems.com%252FLeonardo-da-Vinci-Michelangelo.htm%3B300%3B223 picture
https://www.google.co.uk/search?q=robotic+knight+da+vinci&source=lnms&tbm=isch&sa=X&ei=MdVxU6mtLcTC7Aa744GICw&sqi=2&ved=0CAYQ_AUoAQ&biw=1280&bih=929#facrc=_&imgdii=_&imgrc=hoPoar59GCfJsM%253A%3BMOdtTn6YH-I90M%3Bhttp%253A%252F%252Fwww.leonardo-da-vinci-biography.com%252Fimages%252Fleonardo-da-vinci-robot-knight.jpg%3Bhttp%253A%252F%252Fwww.leonardo-da-vinci-biography.com%252Fda-vinci-robotic.html%3B309%3B476 picture
http://www.lairweb.org.nz/leonardo/parachute.html