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Comment Advertisement (Score 1) 169

Typical overconfident US advertising. The best part, the word could implies that it could also be zero. It won't be worse as in that case we would use present designs.

Furthermore, 10 times longer is not precise. It could also indicate more charge discharge cycles. So they should have said, the capacity could be 10 times higher.

Comment Carbon capture technology is not required (Score 3, Insightful) 275

First, we have to phase out CO2 by 2050 or 2040 (1.5 deg C). Second, we do not need fancy carbon capture tech. We can rely on plant growth and reforestation programs which actually work. We had a few of those. Also we have to help countries to protect their forests. Also helpful would be to reduce meat production.

Comment Tokenism at its worst (Score 1) 104

Poland is hindering the EU in being more effective reducing CO2 emissions because they want to protect their coal. Instead of actively steering the transformation, they try to stop it. Such solar-something toys are only tokenism and has no real effect. Neither do they test new technology nor do they help to proliferate existing technology. It is even worse than that what the Germans do. It is like politicians have not understood that we have to be carbon free be 2040/2050 (depending on the reduction curve). You cannot negotiate a later date with nature, because nature doesn't give a damn.

Comment 2 years, really? (Score 1) 508

Systemd is new and, as people wrote it in C without proper software engineering, it has a lot of flaws. However, this is the case in many software components. Unfortunately, this bug has existed for 2 years. Really, do they have no test regiment at all? In case the bug existed without prior knowledge, then this is just unfortunate, if it existed and the systemd developers knew about it, then this is irresponsible. In any case, I expect a fix in days or better in hours.

Comment Uber advertising itself (Score 4, Insightful) 135

Like many other "tech" companies, Uber tries to show that they are innovative. However, they are not. Lets illustrate that with flying cars. The topic of flying objects which are heavier than air has been discussed lengthly in engineering. Therefore, it is relatively good understood. First, you need some force to counteract gravity (or disable gravity) and then you need additional forces to move around. In airplanes, this is done with wing which transform kinetic energy of the moving plane in lift. Therefore, either an engine is required to resupply the system with new kinetic energy or you require thermal lift. For vertical lifting, we developed rockets and helicopters which provide a counterforce + some extra to move an object up. All these technologies already exist. Yet they cannot be used to create a flying car which is cheap enough to make is an alternative to a car. Just compare the price and fuel consumption of a small helicopter and a car to see that this is not economical realizable for most people. Therefore, it is not an engineering problem, but a problem of theoretical physics to come up with a way to cancel out gravity. Unfortunately, Uber is not investing in that.

Second, average humans are not capable of flying devices. That is why pilots require a lot of training. Lets assume computer scientists and robot developers are able to create an autonomous flying machine, which is an enormous engineering task, as we are barely able to get it done with cars. Some might say, yes but we have autonomous flying drones and autopilot. The first fail often and military drones need supervision. Autopilots are able to steer a system through the air until something happens which requires human interaction. Also current flight is heavily regulated and controlled by pilots and controllers on the ground. In a "Fifth Element"-like scenario, thousands of cars are flying around. Therefore, you need additional rules, as they are closer together. Just like nowadays on the ground. An autonomous flying machine would have to mange all these rules and understand all other moving objects together which is much more complicated than 2D.

Therefore, such effort is futile, which let me conclude this is just a marketing scam used to show Uber is so great company. While the truth is, they are just a company with a lot of money form venture capitalists which provides an app and enterprise software behind it. Thus, they are just a business model not an engineering company and definitely not a company capable to come up with new physics.

Comment Re: The way the web works (Score 1) 121

Web systems are reactive systems. Therefore, you have events which trigger functions/transformations wich modify data and returns an reply. This can best be realized with functional programming style and object types. But, yes, technology stacks go in circles instead forward. And with JavaScript it can cycle back. Using a duck typed language is a nightmare for software evolution. Fortunately, Google advices to use TypeScript which fixes this issue. Again.

Comment Disruptive Innovation (Score 1) 311

Apple has often brought 'Innovation' in form of new jakcs often even incompatible ones. Now they removed one perfect standard plug again. And some Android phones, especially from Samsung, will also skip the old jack. But they are not the only ones. In recent PC hardware the sound quality of the analog output is degrading . It is in fact an industry thing. USB and Bluetooth headsets bring in more money and computers can get cheaper, was they do not need a real audio device.

Comment Two ton vehicle? (Score 1) 77

What do they use to deliver pizza? A SUV? Here in good old Europe(tm) they use bicycles, ebikes and scooters to deliver pizza. This has the additional advantage that I do not need to run X stairs down to the street, pick up the pizza and get back up to my flat. All that before someone else takes the pizza.

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