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Category: satellites – Page 52

Jim Cantrell is an entrepreneur, strategist, subject matter expert in satellite systems, space system markets and road racer. Founder of StratSpace, Founder of Vintage Exotics Competition Engineering, early partner and VP at SpaceX.

Links.
https://en.wikipedia.org/wiki/Jim_Cantrell.
https://twitter.com/jamesncantrell?lang=en.
https://www.goodreads.com/author/show/18894007.Jim_Cantrell.
http://www.jimcantrell.com/book (new book)

PODCAST INFO:
The Learning With Lowell show is a series for the everyday mammal. In this show we’ll learn about leadership, science, and people building their change into the world. The goal is to dig deeply into people who most of us wouldn’t normally ever get to hear. The Host of the show – Lowell Thompson-is a lifelong autodidact, serial problem solver, and founder of startups.

LINKS
Youtube: https://www.youtube.com/channel/UCzri06unR-lMXbl6sqWP_-Q
Youtube clips: https://www.youtube.com/channel/UC-B5x371AzTGgK-_q3U_KfA
Linkedin: https://www.linkedin.com/in/lowell-thompson-2227b074
Twitter: https://twitter.com/LWThompson5
Website: https://www.learningwithlowell.com/
Shownotes/ Timestamps.
00:00 Intro.
00:30 Book launch.
01:30 Miniseries.
02:15 Audiobook.
04:15 Self publishing.
05:26 Andy Weir / Conferences.
06:25 Carl Sagan simile.
15:02 SpaceX and Blue Origin, Jeff Bezos and Elon Musk.
21:17 Jeff Bezos Blue Origin True Origin story.
26:08 Jeff Bezos Accountability.
31:11 SpaceX Raptor 2 engines design compared to Phantom space engines.
34:45 Engines and ksp 2
37:25 Assets of being engineering leader.
39:37 Testing.
40:55 Duel welding SpaceX, Phantom Space.
43:25 Hiring Right.
47:10 Snap On Tools.
49:55 Tools.
51:11 American vs German Engineering.
53:58 Custom tools.
56:18 Soundtrack for book.
58:49 Childhood stories.
1:04:16 Innovation, exploration, Mars balloon.
1:06:01 Race Car’s Soul.
1:08:20 Car’s personality keyed to individual or?
1:12:45 Speeding tickets.
1:18:19 Cars as stray cats and designing his own car.
1:21:35 Train for racing.
1:23:56 Racing training machines.
1:25:02 Goals for racing.
1:25:34 AI/ML in racing.
1:26:55 Books.
1:28:55 Staying up to date with Jim Cantrell.
1:29:42 Elon Musk Twitter deal.
1:32:31: Apple and privacy.
1:33:53 Final thoughts on book.

#racing #spacex #elonmusk

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We humans have a wonderful ability to keep developing, innovating, and engineering bigger, better, and faster contraptions. Close to Earth, we’ve been soaring through the skies in airplanes since 1903 thanks to the Wright brothers, and we’ve been launching spacecraft into space since 1957 when the Soviet Union rocketed the Sputnik satellite above our heads.

The team discovered a way of stabilizing detonation for hypersonic propulsion by creating a hypersonic reaction chamber for jet propulsions.

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So low that Starlink satellites have started photobombing its images.

Starlink and other broadband satellite constellations will threaten astronomical viewing in the upcoming years. Today, a team of astronomers has demonstrated that the satellite issue can’t be solved even by the Hubble Space Telescope.

Today, a team of astronomers has demonstrated that the satellite issue can’t be solved even by the Hubble Space Telescope.

With the deployment of Starlink and other communication satellite constellations, an increasing understanding of their detrimental impact on astronomy has emerged. The expanding number of internet satellites in Earth orbit has been noted as challenging astronomical studies using ground-based observatories by the international astronomy community. These worries are currently affecting Hubble.

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In December 2019, the United States established its new space force: the United States Space Force. A logical step in a globalized and digitized world whose infrastructure depends on satellites in space. This infrastructure is under threat. Also by a resurgence of conflict between East and West. This episode of Spacetime describes how the military conquered space and why the world is in a new arms race in Earth orbit.

#documentary #spacetime #usa.

📺 Watch more documentaries https://www.youtube.com/playlist?list=PL-5sURDcN_Zl8hBqkvZ6uXFpP3t55HU9s.

🔔 Subscribe to our full documentary channel.

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A NASA-led research team used satellite imagery and artificial intelligence methods to map billions of discrete tree crowns down to a 50-cm scale. The images encompassed a large swath of arid northern Africa, from the Atlantic to the Red Sea. Allometric equations based on previous tree sampling allowed the researchers to convert imagery into estimates of tree wood, foliage, root size, and carbon sequestration.

The new NASA estimation, published in the journal Nature, was surprisingly low. While the typical estimation of a region’s might rely on counting small areas and extrapolating results upwards, the NASA demonstrated technique only counts the trees that are actually there, down to the individual tree. Jules Bayala and Meine van Noordwijk published a News & Views article in the same journal commenting on the NASA team’s work.

The initial expectation of counting every scattered tree, in areas that previous models often represented by zero values, was erased by large overestimations in other areas of the earlier assessments. In previous attempts using satellites, cropland, and ground vegetation adversely affected optical images. If radar was used, topography, wetlands, and irrigated areas affected the radar backscatter, predicting higher stocks than the current NASA estimations.

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ALGORITHMS TURN PHOTO SHAPSHOTS INTO 3D VIDEO AND OR IMMERSIVE SPACE. This has been termed “Neural Radiance Fields.” Now Google Maps wants to turn Google Maps into a gigantic 3D space. Three videos below demonstrate the method. 1) A simple demonstration, 2) Google’s immersive maps, and 3) Using this principle to make dark, grainy photographs clear and immersive.

This technique is different from “time of flight” cameras which make a 3D snapshot based on the time light takes to travel to and from objects, but combined with this technology, and with a constellation of microsatellites as large as cell phones, a new version of “Google Earth” with live, continual imaging of the whole planet could eventually be envisioned.

2) https://www.youtube.com/watch?v=EUP5Fry24ao.

3)

We present RawNeRF, a method for optimizing neural radiance fields directly on linear raw image data. More details at https://bmild.github.io/rawnerf.

Continue reading “NeRF in the Dark: High Dynamic Range View Synthesis from Noisy Raw Images” | >

The new Starlink satellites are a precursor for larger models that will eventually launch aboard Starship.

SpaceX lifted the first batch of its new Starlink “V2 mini” satellites to orbit on Monday, February 27. The private space firm launched 21 of the new generation satellites aboard a Falcon 9 rocket that also came down to perform the 100th successful booster landing in a row for the company.

The Starlink mission took to the skies at 6:13 pm EST (2313 GMT) from Florida’s Cape Canaveral Space Force Station. The launch was delayed roughly five hours before liftoff due to “a space weather concern,” SpaceX explained on Twitter.

Twitter / SpaceX

The private space firm launched 21 of the new generation satellites aboard a Falcon 9 rocket that also came down to perform the 100th successful booster landing in a row for the company.

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However, these ones are different to the several thousand Starlink satellites that are already circling Earth.

That’s because they sport a more modern and powerful design that gives them four times the capacity for serving customers compared to the original design, SpaceX said. So, yes, it means faster internet speeds for customers.

SpaceX chief Elon Musk confirmed the successful deployment of the new satellites in a tweet.

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