Sheldon's Brown De Oxy Ribo T-Shirt From Big Bang Theory

This brown De Oxy Ribo T-Shirt was worn by Sheldon in Season 2, Episode 23 (The Monopolar Expedition)

Sheldon's Purple Nanotubes T-Shirt From Big Bang Theory

This purple Nanotubes T-Shirt was worn by Sheldon in Season 2, Episode 19 (The Dead Hooker Juxtaposition), Season 3, Episode 11 (The Maternal Congruence), and Season 5, Episodes 15 (The Vacation Solution) and 22 (The Stag Convergence)

Sheldon's Black Quantum T-Shirt From Big Bang Theory

This black Quantum T-Shirt was worn by Sheldon in Season 3, Episode 9 (The Vengeance Formulation)

Sheldon's Light Blue Atmospheric CO2 T-Shirt From Big Bang Theory

This light blue Atmospheric CO2 T-Shirt was worn by Sheldon in Season 3, Episode 10 (The Gorilla Experiment) and Season 4, Episode 4 (The Hot Troll Deviation)

Sheldon's Blue Screens and Lenses Work Magic T-Shirt From Big Bang Theory

This "Screens and Lenses Work Magic." t shirt was worn by Sheldon in Season 5, Episodes 10 (The Flaming Spittoon Acquisition) and 23 (The Launch Acceleration)

Sheldon's Roboticus Carpalium T Shirt in the big bang theroy

Sheldon's Roboticus Carpalium T Shirt

This Sheldon's Roboticus Carpalium T Shirt was shown in the S02E18 (The Work Song Nanocluster),When they four boys were making 1000 flower barrettes called penny blossoms in one night .
Humaniform robot hand, similar to humans in dexterity, 24 joints, 20 degrees of freedom, powered by 40 forearm muscles. High-speed hands. (Shadow Robot Co. London, U Tokyo, U Laval CDN.)

Sheldon's Mobo T Shirt in the big bang theroy

Sheldon's Mobo T Shirt

This Sheldon's Mobo T Shirt was fisrt shown in S01E13(The Friendship Algorithm),when Sheldon was trying to learn how to make freind ,so he was going to the mall to acquire a book that summarizes that current theories in the field of friendmaking.
"What's a mobo?"

Mobo = motherboard. Computer braintrust.

Sheldon's Are You Grid Equipped T Shirt in the big bang theroy

Sheldon's Are You Grid Equipped T Shirt

This "Are You Grid Equipped?" T Shirt was wron by Sheldon in S01E14,when sheldon was playing the tablegame with howard and raj,they "are on a quest through the valley of fire to acqure the sacred crown".