1998 JEFF BEZOS SIGNED AUTOGRAPH AMAZON BILLIONAIRE RARE EMPLOYEE CUSTOMER GIFTfrom $4,999.99 INVENTOR Bill Gates Hand Signed Autographed Photo w/COAfrom $225.00 vint cerf signed 1.0 First AOL Disk Psa Coa Co-creator Of The Internetfrom $500.00 Freeman Dyson theoretical physicist signed autographed psa slabbed business cardfrom $249.00 TIM COOK SIGNED AUTOGRAPH EXTREMELY RARE APPLE 8x10 PHOTO STEVE JOBS PSA DNA Bfrom $900.00 Bill Gates Autographed Windows 2000 Certificatefrom $450.00 CHARLES DARWIN 1850 HANDWRITTEN SIGNED JSA LOA BECKETT HISTORIC DISPLAYfrom $265.00 ITALIAN ESA STS-120 ASTRONAUT; PAOLO NESPOLI AUTOGRAPH,HAND SIGNEDfrom $5.00 NEIL DEGRASSE TYSON Signed 5x7 Photo Encased Beckett COA BASfrom $69.00 PHILIP ZIMBARDO SIGNED AUTOGRAPHED 8x10 PHOTO STANFORD PRISON EXPERIMENT COAfrom $99.99 NEIL DEGRASSE TYSON STARTALK ASTROPHYSICIST SIGNED 11x14 PHOTO BECKETT COA BASfrom $224.99 CHARLES DARWIN 1850 HANDWRITTEN SIGNED JSA LOA BECKETT HISTORIC DISPLAY “TRUTH”from $275.00 Science, Inventor - Video
famous scientists and their inventions/Inventions and Inventors
Important Inventions & Discoveries - Static GK
Gk Hindi | खोज / अविष्कार | Science Gk Tricks for SSC | IAS | PCS | Railway | Banking
Little Inventor: The 9 year old science genius - The Feed
CHARLES DARWIN 1850 HANDWRITTEN SIGNED JSA LOA BECKETT HISTORIC DISPLAYfrom $210.00 TIM COOK SIGNED AUTOGRAPH EXTREMELY RARE APPLE CEO 8x10 PHOTO STEVE JOBS COA Cfrom $900.00 JAMES D WATSON SIGNED AUTOGRAPHED 8x10 PHOTO DNA SCIENTIST DOUBLE HELIX COAfrom $349.99 CHARLES DARWIN 1850 HANDWRITTEN SIGNED JSA LOA BECKETT HISTORIC DISPLAY “I”from $225.00 Neil Degrasse Tyson Signed 8x10 Beckett COAfrom $149.99 Tommy Hilfiger autographed signed 8x10 photo Beckett BAS COA Fashion Designerfrom $225.00 Steve Woz Wozniak SIGNED Apple I Computer Schematic Founder PSA/DNA AUTOGRAPHEDfrom $75.00 Steve Wozniak SIGNED Apple I replica Motherboard FULL LETTER PSA/DNA AUTOGRAPHEDfrom $700.00 "Kodak Founder" George Eastman Autograph Hand Signed PSA/DNA Certifiedfrom $395.00 
