ORCA ZODE
Energy
The future is made of energy
A megatrend way bigger than decarbonization is probably the key to abundance and sustainability both.
Outside takes on clean energy
Some articles from Orca contributors over the last few months.
Fertilizer from air plasma
Revisiting Soviet-era results showing efficient N2 oxidation in non-equilibrium plasmas. An intriguing approach to low-cost nitrate fertilizers without Haber-Bosch.
Utilities should be paying much more for transformers, but won't
They are incentivized to waste electricity anywhere it results in less capex.
Checking some prejudices on materials decarbonization
We'll make more decarbonization progress by inventing the materials of the future than by reinventing the materials of the past.
A review of massively scalable enhanced rock weathering
How cheaply can it pull CO2 from the air?
Cargo airships could be big… but if they're too big they'll get ripped apart by turbulence
Exponential wind loading near the atmosphere’s length scale for turbulence might prevent airships from getting much longer than about 400m.
Beamed power for electric aviation
Microwave phased arrays seem to be a more realistic option than batteries or H2 for powering long-haul electric aviation. We still doubt anybody will build them.
New figures on the cost of contrail avoidance
~1% of global warming addressable at around $1/ton CO2 equivalent.
Laser growth of carbon fiber
We tried to use a cheap laser to grow carbon fiber directly from methane gas. It worked quickly and repeatably, but the carbon fiber wasn’t as strong as it’d need to be to make a good commercial product.
New frontiers for bright radiation
Powerful infrared lasers are getting extremely cheap. What should we use them for?