At TEDxYouth@Manchester, genetics researcher Dan Davis introduces the audience to compatibility genes — key players in our immune system’s functioning, and the reason why it’s so difficult to transplant organs from person to person: one’s compatibility genes must match another’s for a transplant to take.

To learn more about these fascinating genes, watch the whole talk here»

(Images from Davis’s talk, Drew Berry’s animations, and the TED-Ed lessons A needle in countless haystacks: Finding habitable worlds - Ariel Anbar and How we conquered the deadly smallpox virus - Simona Zompi)

Prosthetic limbs that match your body … and your style:  Industrial designer Scott Summit uses 3D printing technology to create individualized artificial limbs that users can choose and personalize to fit their unique style.

In a talk at TEDxCambridge, Summit explains how this process not only gives users autonomy over the aesthetics of their prosthetics, but also makes for artificial limbs that factor in the quirks, curves, and uniqueness of a user’s body, eliminating the need for prosthetic-wearers to hack their artificial limbs — with socks, bubble wrap, even duct tape — to feel comfortable. Watch the whole talk here»

Above, photos of some of the creations made by Summit’s design firm, Bespoke Innovations.

Photographer Timm Suess is passionate about capturing decay in our world. He travels to abandoned factories, clinics, and military installations to photograph the places people leave behind.

In a talk at TEDxGundeldingen, Suess details his Chernobyl Journal: a project that led him to the city of Pripyat, Ukraine, which was abandoned after the Chernobyl disaster.

Above, photos from the project, which documents places lost to the disaster.