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The Crew Dragon spacecraft has a problem with its parachutes The Crew Dragon spacecraft has a problem with its parachutes

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The Crew Dragon spacecraft has a problem with its parachutes, but it should not affect the landing process

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The last two landings of the SpaceX Crew Dragon spacecraft have shown that the device has a certain problem with the parachute system.

The system consists of four parachutes, and normally they open at about the same time. However, in the last two landings, one of the parachutes lagged behind the first three. To be more precise, in November it was delayed by 75 seconds, and in January the delay was 63 seconds. Here it is worth noting separately that we are talking more about inflating parachutes, and not about opening as a whole.

The Crew Dragon spacecraft has a problem with its parachutes, but it should not affect the landing process

True, the landing itself in both cases passed without any problems. Now NASA and SpaceX experts, having analyzed both cases, say that there is no danger in this, since the ship was still descending at an acceptable speed. The scientists add that the process will proceed normally even if the fourth parachute does not open at all.

True, this does not mean that they will turn a blind eye to the problem. The Crew Dragon teams plan to conduct a full check of the parachutes, although they do not anticipate the need to make any major changes to the hardware or design of the SpaceX spacecraft.

This is more of a learning exercise on how we can improve our understanding of parachute design and engineering.

Also, SpaceX experts note that they have already observed similar behavior of parachutes during Dragon cargo launches. Presumably, such a situation is formed, since the first three parachutes aerodynamically, as it were, obscure the last one.

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One Galaxy S23 Ultra costs Samsung $469 with a retail price of $1,200

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One Galaxy S23 Ultra costs Samsung 469 with a retail

The flagship smartphone Samsung Galaxy S23 Ultra sells for $1,200, and the company costs almost three times less.

One Galaxy S23 Ultra costs Samsung $469 with a retail price of $1,200

According to Counterpoint analysis, the production of the flagship costs Samsung about $469. Thus, Samsung makes more than $700 on each Galaxy S23 Ultra, but this, of course, does not take into account many factors, including marketing, R&D and so on. And even assembly is not taken into account here, although it is usually very cheap in terms of one device.

One Galaxy S23 Ultra costs Samsung $469 with a retail price of $1,200

One Galaxy S23 Ultra costs Samsung $469 with a retail price of $1,200

More than a third of the production price of the flagship comes from the SoC Snapdragon 8 Gen 2, that is, the platform costs about $ 165, which is very, very much. Second place in price goes to the screen (18% of the cost), followed by cameras (14%) and memory (11%). 67% of the cost of production comes from Qualcomm and Samsung components.

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Japan will try to transfer energy from space to Earth as early as 2025

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Japan will try to transfer energy from space to Earth

Japan is going to transfer energy from space to Earth as early as 2025. We are talking about the transfer of energy received from solar panels placed in space. Of course, without any cables.

Japan will try to transfer energy from space to Earth as early as 2025

Photo: Kyoto University

There are few details about the project yet. It is known that it will be implemented by private companies with the support of the state. It is also reported that the project will involve small orbiting satellites, which will transmit energy in the microwave range to Earth.

In itself, the technology of energy transmission over the air is not at all new, but in the case of such a project, we are talking about distances of hundreds of kilometers. The Japanese space agency JAXA made a breakthrough in this area back in 2015, when scientists managed to transfer 1.8 kW of power, but then the distance was only 50 meters.

At the same time, even if Japanese scientists succeed, the technology of transmitting solar energy directly from space is unlikely to become widespread in the foreseeable future, since now calculations show that about 7 billion dollars need to be spent on generating 1 GW of power in orbit, and how much of them will be able to deliver to Earth, and it is not yet clear at all.

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This is the second generation of the iconic NH-D15 super cooler. There are not many changes, but it’s still a long time to wait for the release

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This is the second generation of the iconic NH D15 super

Noctua first showed a new generation of CPU cooler NH-D15.

This is the second generation of the iconic NH-D15 super cooler.  There are not many changes, but it's still a long time to wait for the release

Outwardly, the cooler has changed very little, so they decided not to change the name. But, for example, there were eight heat pipes against six in the first generation. In addition, the gap between the ribs was reduced from 1.9 to 1.6 mm.

This is the second generation of the iconic NH-D15 super cooler.  There are not many changes, but it's still a long time to wait for the release

Two new-generation 140mm fans will be responsible for airflow, details of which are not yet available. All of this combined should make the iconic cooler a bit more performant, although now, almost 10 years after its release, it is still one of the best-performing CPU coolers on the market.

This is the second generation of the iconic NH-D15 super cooler.  There are not many changes, but the release is still a long time

Despite the demonstration, the release of the novelty is still far away: Noctua is going to release the cooler only next year.

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