A new MIT
The study reveals that the number of visitors to any location decreases as the inverse of the square of the distance traveled. Since affordable housing is far from a city center, that and online shopping means downtowns are emptying. Cities are looking for more independence and security with water, food and 100% electrification. The smart city
dreamy rest just 15 minutes walk or bike ride from work. With rising sea levels and global warming, much of the world is either flooded or deserted – unless we are smart. The medieval walled city will return where climate migration becomes unpleasant.
The Agrihood mixed-income apartment complex in Santa Clara will come with its own 1.5 acre farm. Making a lot of food in a limited space means real milk and meat grown from a few cells, and aquaponics growing vegetables and fish together using polymer, glass, nutrients, and water. filters. Solar greenhouses power their robots. Outdoors, expect weedkillers, solar seeders, etc. IDTechEx
report, “Electric vehicles and robotics in agriculture 2020-2030
The materials used in internal combustion vehicles are mostly phased out as successful battery electric vehicles. At the end of 2021, the battery Mercedes
The entry-level S model was offered at a lower price than the internal combustion version. You’re here
the order books move away around one year. However, his Cybertruk, with over a million controls, has a high-strength stainless steel exoskeleton, which means there is no crumple zone. Will it be legal in Europe?
Cities producing and storing all their electricity are becoming urgent as increasingly severe weather destroys distant power lines. The latest US Short-Term Energy Outlook reports that US hydroelectric power generation is 14% lower in 2021 due to extreme and exceptional drought. Georgia Namakhvani’s planned hydropower project is now unlikely given vehement environmental objections and the builder’s withdrawal. Chinese versions have inadequate concrete cracks. Better to do your electricity in town.
With solar winning on prices, seasonal storage of electricity is a new need and wind needs something too. The lack of wind was one of the reasons UK electricity costs skyrocketed at the end of 2021. For storage days, many options have arrived, and seasonal gravity storage seems excellent, but other options like pumping high density liquids in the hills are worth checking out.
Most of the larger cities are already near the sea or a large river, which attracts the many forms of tidal and wave energy without infrastructure. Recyclable thermoplastic wind turbines and tidal turbines are on the menu. Sophisticated polymer ties over a mile long hold kites and drones that generate aerial wind power (see the IDTechEx
report “Airborne wind power 2019-2039
Polymer composites are preferred for drones, small airplanes and robotic shuttles in cities, some 3D printed. Metamaterials promise many applications, from passive cooling on solar panels to stand-alone radar antennas and reprogrammable smart surfaces solar-powered RIS on buildings redirect and boost 6G communications. See the IDTechEx report, “Electromagnetic Metamaterials and Metasurfaces Markets 2022-2042
Mistakes are made with the passenger capacity. Like the autonomous shuttle on the road to Amazon
Zoox – a four seater – Airbus
joined the air taxi race late with a dubious multicopter design: its relatively slow cruising speed, limited range and 4-passenger capacity are not ambitious compared to other eVTOL developers. The robotic shuttles must carry 15 to 25 people. Examples of Toyota
, Local Motors Olli, Marinea
, and others easily reused as school bus, taxi, bus or freight. MicroLED displays
will help. Non-stop charging means structural solar monocrystalline silicon (Easymile) body and non-contact charging. See the IDTechEx report, “Robotic shuttles for smart cities 2021-2041
With airplanes, distributed thrust is gaining share. This involves multiple thrusters eliminating the need for flaps, tail and much of the size and weight of the wing. It is even used on a ground effect plane flying low over the sea. The intimate integration of thrust and aerodynamics offers material opportunities. See the IDTechEx report, “Manned electric aircraft: Smart City and regional 2021-2041
The most important order books concern fixed-wing airplanes with electric battery up to ten seats. Some have vertical take-off and landing capability, but it affects endurance time so much that they can be used primarily for extremely short take-offs and landings. A recent order for the safer fixed-wing VTOL with its longer range was Brazilian airline GOL by ordering 250 from Vertical Aerospace in the UK.
âThe VA-X4 is ideal for a city like Sao Paulo,â Stephen Fitzpatrick, CEO of Vertical Aerospace, said in a statement. “Our eVTOLs will transform the way we travel in densely populated cities that are congested with traffic.”
The construction industry consumes 40 billion tonnes of aggregates per year. Construction sand is scarce as only river and beach sand is currently considered suitable. Make the desert sand useful.
The form of graphene is affordable now because only small amounts are needed. This initiates calcium silicate gels and optimal host crystallinity with a 400% reduction in water permeability. Final testing of 3D printed graphene concrete made in UK high speed rail tunnels will take place in 2022. Advances will be welcome in the tunnels of You’re here
Boring company quickly transporting vehicles under cities and hyperloop tubes carrying passengers between cities at the speed of an airplane. The massive UHPC sea defenses will be built to last, despite the use of much less materials.
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