IEEE Spectrum has released its Top 10 Tech Cars issue. The most fun car listed is the Porsche Taycan electric vehicle (photos above by Alexander Migl: 1; 2 – click to zoom).
The Taycan uses the 800-volt architecture of the 919, which allows for fast charging and a slight weight reduction. The drag coefficientCd is in the range 0.22 to 0.25. With 460 kW of power for the Turbo S model, this allows top speeds of 268 km/h or so. There are electric motors on both front and rear axles, four-wheel-steering, and air suspension. You pay for it, though.
There does not seem to be the exponential growth in cases that one would expect (see the badly-fitting blue curve), except at first. In fact, allowing for the “false spike,” growth seems to be almost linear (see the dashed purple line). This would probably be due to under-counting (the Chinese medical system can only diagnose a certain number of cases each day), although it offers some hope that quarantine measures may be working. Let us pray that they continue to work.
Some caution seems necessary in interpreting this claim, however. First, it does not refer to any of the practical tasks that people would like quantum computers to solve. And second, IBM claims that 2.5 days is a more realistic estimate for the time required on a classical supercomputer. It does seem that “quantum supremacy” is not quite here yet (see also what Scott Aaronson has to say).
Photo: IBM 50-qubit quantum computer (credit: Ian Hughes, 2018)
There are now 9 international teams in Australia (more than the number of local teams). Eindhoven (#40), Agoria (#8), and part of Vattenfall (#3) are driving north to Darwin, while Top Dutch (#6) have a workshop in Port Augusta (and living quarters in Quorn).
#89 Estidamah – they have not responded to questions. They also might not turn up, although they have obtained several greens for compulsory documents.
#80 Beijing Institute of Technology – they never say much, but they always turn up in the end. I don’t expect this year to be any different.
#4 Antakari Solar Team – they are clearly behind schedule, but they are an experienced team. They will probably turn up. (edit: they have revealed a beautiful bullet car)
#55 Mines Rabat Solar Team – they seem to have run out of time. Can they finish the car and raise money for air freight? I’m not sure. (edit: it seems that they will attend the Moroccan Solar Challenge instead of WSC)
In the leadup to the 2019 Bridgestone World Solar Challenge in Australia this October, most cars have been revealed (see my recently updated illustrated list of teams), and the first few international teams (#2 Michigan, #3 Vattenfall, #6 Top Dutch, #8 Agoria, and #40 Eindhoven) have arrived in Australia (see map above). Bochum (#11), Twente (#21), and Sonnenwagen Aachen (#70) are not far behind. Eindhoven (#40) are currently engaged in a slow drive north, while Top Dutch (#6) have a workshop in Port Augusta (and living quarters in Quorn).
Meanwhile, pre-race paperwork is being filled in, with Bochum (#11) and Twente (#21) almost complete. Sphuran Industries from India (#86) is not looking like a serious entrant. On a more positive note, though, Jönköping University Solar Team (#46) is revealing their car later today!
Below (click to zoom) is a solar car map of the Netherlands (north, south, east, west), plus the German cities of Aachen & Bochum and the Belgian city of Leuven, which are close enough to the Dutch border to be in the map region. That’s 7 solar car teams in a very small corner of the world! (base map modified from one by Alphathon).
Four representative solar car team activities in the lead-up to the World Solar Challenge in October – Top left: Cambridge revealed their Cruiser on 15 August (photo: Nigel); Top right: Solar Team Eindhoven packed up their Cruiser for air transport to Australia, as also did Top Dutch (photo: Bart van Overbeeke / STE); Bottom left: Agoria Solar Team (Belgium) did some final testing at Beauvechain Air Base in less than perfect weather (credit); Bottom right: Bochum SolarCar Projekt is staring at a map as their container slowly travels to Australia by sea – the ship was expected in Fremantle today, en route to Melbourne and Sydney (credit)