Staff of the Living Tribunal

This staff appears to be made of wood and is approximately a meter long when in its normal form. When activated by Mordo it has several powers. With a strong pull on both ends, the staff expands into a jointed energy nunchaku. It can also extend to an even greater length like a bullwhip. When it impacts a solid object such as a floor, it seems to release a crack of loud energy. Too bad we only ever see it in demo mode.

How might this work as technology?

The staff is composed of concentric rings within rings of material similar to a collapsing travel cup. This allows the device to expand and contract in length. The handle would likely contain the artificial intelligence and a power source that activates when Mordo gives it a gestural command, or if we’re thinking far future, a mental one. There might also be an additional control for energy discharge.

In the movie, sadly, Mordo does not use the Staff to its best effect, especially when Kaecilius returns to the New York sanctum. Mordo could easily disrupt the spell being cast by the disciples using the staff like a whip, but instead he leaps off the balcony to physically attack them. Dude, you’re the franchise’s next Big Bad? But let’s put down the character’s missteps to look at the interface.

Mode switching and inline meta-signals

Any time you design a thing with modes, you have to design the state changes between those modes. Let’s look at how Mordo moves between staff, nunchaku, and whip in this short demonstration scene. Continue reading

Cyberspace: Beijing Hotel

After selecting its location from a map, Johnny is now in front of the virtual entrance to the hotel. The virtual Beijing has a new color scheme, mostly orange with some red.


The “entrance” is another tetrahedral shape made from geometric blocks. It is actually another numeric keypad. Johnny taps the blocks to enter a sequence of numbers.

The tetrahedral keypad


Note that there can be more than one digit within a block. I mentioned earlier that it can be difficult to “press” with precision in virtual reality due to the lack of tactile feedback. Looking closely, here the fingers of Johnny’s “hands” cast a shadow on the pyramid, making depth perception easier. Continue reading

Military defense

To defend themselves from the monster, the crew erects a defensive perimeter with terrifyingly inadequate affordance. It consists of roughly meter-high posts with eight edge-lit transparent triangles jutting out of opposite sides. When solid matter passes between any two posts, it is dealt a massive jolt of electricity. While useful, perhaps, to trap an invisible, animal-minded monster, the lack of any visual affordance to this effect seems stupidly dangerous to innocent animals and humans that might unknowingly step across its fatal path.

The bosun tests the defensive perimeter.