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News Article | May 4, 2017
Site: motherboard.vice.com

Earth is a lush haven for life at the moment, thanks in part to its comfortable distance from the Sun. But there will come a time when our star's explosive death rattles will vaporize our home world. What then? Where in the universe should humans migrate to build a civilization with some kind of cosmic permanence? For the creators of Kurzgesagt (In a Nutshell), a YouTube channel that tackles complex topics with "optimistic nihilism," the answer is to find ourselves a nice stable white dwarf system. In a animated short posted Thursday, the channel laid out the reasons why white dwarfs—which are the corpses of dead stars—are likely to be "humanity's last refuge" when the lights start to go out in the universe. "The Last Lights Before Eternal Darkness." Video: Kurzgesagt (In a Nutshell)/YouTube About 97 percent of stars in the universe, including the Sun, are destined to become white dwarfs after they exhaust their nuclear fuel and burst into novas and supernovas. White dwarfs are the raw exposed cores left in the ashes of these pyrotechnic events, and they are much more stable and long-lived than their stellar forebears. While the Sun has a lifetime of about ten billion years, scientists estimate that white dwarfs will shine for trillions of years, making them potentially "the last sources of light and energy in a dying universe," according to the animated short. In other words, if humanity wants to play the cosmic long game, we should cozy up to white dwarf systems to ride this whole sentient existence thing out to the very end. Red dwarfs also present a promising long-term option, but because they are thought to be more flare-happy than white dwarfs, it may be more of a gamble to set up shop next to them We would probably have to bring our own planetary hardware, since any life-bearing worlds in white dwarf systems are likely to have been eviscerated by the deaths of the original stars, but we still have a few billion years left on Earth to work out these logistics. Perhaps we can even re-colonize the stellar cadaver left behind by our own Sun. Read More: Watch This White Dwarf Mercilessly Wail On Its Red Dwarf Friend Of course, even if humans were to migrate to these dwarf systems, it would only prolong the inevitable. Many trillions of years from now, during the heat death of the universe, even white dwarfs will fade out into black dwarfs, and life as we know it will be extinguished forever. But in keeping with their optimistically nihilist tone, the Kurzgesagt team offers some words of advice for confronting the inherent mortality of everything: "It doesn't matter what happens in a million trillion years," the narrator points out. "Right now, we happen to exist at an excellent time, able to be in awe about a universe filled with endless stars and light and planets, and enough time to visit them one day." Subscribe to Science Solved It , Motherboard's new show about the greatest mysteries that were solved by science.


Mikhaylov N.,St. Petersburg State University of Aerospace Instrumentation | Chernov D.,White Dwarf Ltd.
IFAC Proceedings Volumes (IFAC-PapersOnline) | Year: 2012

The paper introduces the concept of a virtual development lab that was born from cooperation between academia and industry. Shortage of young well-trained engineers and a wish to share the industrial experience that the authors have accumulated over a decade has led one of the authors to teach satellite navigation at a University whilst simultaneously leading an industrial R & D team. The paper presents the results of the use of a virtual lab (VL) that was developed to provide students with hands-on experience in the application of signal processing and automatic control. It is shown that VL has partly bridged the gap between the University training and the needs of industry. However, only an extension of the VL to the virtual development lab (VDL) has allowed the requirements of industry to be fully addressed. VDL is a web-based platform which assists learning by enabling the whole development cycle (design, development, verification) to be conducted in a controlled environment which is similar to industrial one. VDL combines ease of use with real life task setting, thus allowing a student to focus on the essentials of the engineering task. The ease of use is provided by incorporating routine engineering methodology (compilation, linking, testing, and result evaluation) into a graphical user interface (GUI), and a simple and intuitive application user interface (API). Realistic task setting is ensured by the nature of the tasks. The paper provides an explanation of all aspects of the VDL including the initial motivation, the technical and educational framework, its advantages and drawbacks, and the VDL design details. It also provides practical advice for VDL realization. The paper will help future developers of VDLs to deliver this approach. © 2012 IFAC.


Mikhailova N.V.,SUAI | Vasil'ev M.V.,White Dwarf Ltd
Gyroscopy and Navigation | Year: 2011

The influence of outer space conditions on the navigation-processing algorithms has been analyzed. The main problems that need to be solved by researchers in developing procedures for digital signal processing in onboard satellite navigation equipment have been described. It has been shown that navigation accuracy depends on the quality of the models for satellite motion and the onboard clock. It has been proposed that the stochastic "random walk" model based on the Kalman filter should be used for clock modeling. It has been demonstrated that this model is much more efficient than the classical polynomial model for GEO satellite navigation. Together with the precise satellite dynamic model, it allows three-dimensional accuracy on the order of 30 m, even in the case when a standard temperature-compensated crystal oscillator is used. © Pleiades Publishing, Ltd., 2011.


Chistyakov V.V.,White Dwarf Ltd. | Mikhailov N.V.,White Dwarf Ltd. | Pospelov S.S.,White Dwarf Ltd. | Vasil'ev M.V.,White Dwarf Ltd. | Vasil'eva N.V.,AUSRIRE OJSC
Gyroscopy and Navigation | Year: 2011

A method of fast first fix using a low-cost GNSS receiver is presented. The method makes it possible to significantly reduce the time to first fix when GNSS ephemerides and good estimates of the initial user position and time are available. It is also proposed to use Doppler measurements for the initial estimation of user coordinates. The expected time to first fix is calculated depending on the input GNSS signal power. © Pleiades Publishing, Ltd., 2011.


Mikhailov N.V.,White Dwarf Ltd. | Pospelov S.S.,White Dwarf Ltd. | Yudakin D.E.,White Dwarf Ltd. | Glushkov P.V.,White Dwarf Ltd.
Gyroscopy and Navigation | Year: 2013

GNSS development created numerous methods of compensating errors caused by multipath propagation of signals. One of them is the method of extra-long coherent accumulations. The basic idea behind the method is to coherently process the signal on a time span longer than one GNSS information symbol (20 ms). Knowledge of modulating symbols in the navigation message is mandatory to implement the method. The paper proposes to precompute the modulating symbols using navigation data available in the user's receiver. © 2013 Pleiades Publishing, Ltd.


Mikhailov N.V.,White Dwarf Ltd. | Chistyakov V.V.,White Dwarf Ltd.
Gyroscopy and Navigation | Year: 2013

This paper presents the examples of successful application of the method which reduces load on central processing unit (CPU) of the satellite navigation user equipment. The idea behind the method is to save CPU resources by using only partial set of the input samples during signal processing. The method was used to implement a software correlator in the spaceborne MosaicGNSS receiver and to improve performance of the GPS/GLONASS receiver produced by Mstar Semiconductor (Taiwan) for consumer market. © 2013 Pleiades Publishing, Ltd.


Bochkovskii A.L.,White Dwarf Ltd. | Mikhailov N.V.,White Dwarf Ltd. | Pospelov S.S.,White Dwarf Ltd.
Gyroscopy and Navigation | Year: 2012

MStar Semiconductor (Taiwan) has completed design and engineering of a combined GPS/GLONASS receiver for consumer market. The purpose of this paper is to inform the GNSS community about this development; in particular, about specific features and architecture of the receiver. Results of receiver preliminary tests under restricted satellite visibility-first, driving a car in urban environment, and, second, a static test in indoor environment-are also presented. © Pleiades Publishing, Ltd., 2012.


Mikhailov N.V.,White Dwarf Ltd. | Pospelov S.S.,White Dwarf Ltd. | Vasil'ev M.V.,White Dwarf Ltd. | Yudakin D.E.,White Dwarf Ltd. | Glushkov P.V.,White Dwarf Ltd.
Gyroscopy and Navigation | Year: 2012

We propose a method to compensate the errors in pseudorange and Doppler shift measurements resulting from multipath propagation of GNSS signals. The method is based on improving the receiver frequency resolution, which reducesthe multipath effect or even separates a Line of Sight (LOS) signal from a reflected one. Multipath mitigation significantly enhancesthe positioning accuracy. The method was imple mented in a GNSS receiver and tested with GNSS simulator and in real urban canyons. © 2012 Pleiades Publishing, Ltd.

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