Boston Dynamics’ Spot is now Spot Enterprise, capable of self-docking, operates remotely via “SCOUT”, has 30x optical camera system and a vversion with an arm.
Pilot Frixion Pen Writes like a Pen, Erase Like a Pencil
Pilot Frixion Pen writes like a normal pen. However, it can erase the ink like pencil mark. I bought it in Japan and thought it is nice to share the information (especially on how to get it in Singapore).