Nice presentation, but I don't know what's going on with the pupil of the human eye. By my calculations, the Yerks refractor collects over 40,000 times more light than the human eye. The Large Binocular Telescope with an area of ​​1,110,000 cm^2 would collect 5,500,000 times more light than the human eye, but the GMT is supposed to collect 50 million times more light than the human eye and it comes out to 19 million. The ELT is supposed to collect 100 million times more light and only gets about 50 million. A telescope with a diameter of 100 m would have a light-collecting surface of 78,540,000 cm^2, which means that the calculations would result in less than 400,000,000 times more light than the human eye, but the GMT and ELT calculations that I made myself do not match the data provided on the websites. these telescopes.

Love dr. Pappalardo

Thank you for posting this.

Excellent. Thank you!

Johnson Edward Brown Sharon Walker Frank

Rodriguez Melissa Martin William Davis Edward

Cool, nice recap & like the new capabilities for Jupiter/Europa, cheers 🍺

You forgot Dione, Tethys, and Miranda. Miranda shows clear evidence of ocean world activity in the recent past, suggesting either a present day ocean or one that was active very recently; Dione shows strong evidence for a present day ocean; Tethys shows clear, unambiguous evidence for past ocean world activity, but gravity and shape data suggest the ocean is currently frozen. You could also include many more KBOs, including all that show signs of cryovolcanism, but Haumea in particular requires a past ocean to explain its current shape and rotation state.

Will be useful in the "internet-of-things.

Perhaps projecting holograms visible from Earth?

Am Fatima vidyalayam school 5th class ravikiran

more of these!!

great presentation. ISRU is a must for sustained presence in space

great

NISAR= Nasa ISRO Synthetic Apartur Radar😅😅😅

Despite beliefs of crazy life on some crazy planet, if there was a planet like our somewhere out there, and its pretty likely given the amount of stars we see out there, life there would certainly mmic ours at some stage. we are the model of what life is in the universe.

Have you guys seen the film Melancholia? It's about the close transit of a rogue planet to earth. Didn't realize they were so numerous.

Thanks! It helped me a lot to accomplish my school assignment.

thank you very much ! I was searching about this topic and I had many doubts, now I would say Catherine solved them all in this video, it was very clear!

John is legendary!

Hi I am an Architectural student from De La Salle University Dasmarinas, currently taking my thesis entitled " Artificial Photosynthesis R&D facility " which aims to pursue PEC prototyping, can I ask for your expertise, that can provide pivotal information towards an R&D facility.

❤❤❤❤❤👏👏👏👏👏👍

SP7 wax fuel was never well characterized. Wax has low melting temperature, shrinks and cracks... it is just structurally bad compare to polymer alternatives. Equally important, thay failed to understand the combustion process, following traditional well documented challenges with hybrid propulsion...would lead them to fight O/F-shifts, less performance and combustion efficiencies. The biggest failure in my mind is that the team failed to see the that by choosing hybrid propulsion for this case with fairly low TRL and IRL, they had to cover a more lengthy and costly development path compare to choosing either state-of-the-art liquid or solid propulsion.

Wow talk about overcomplicating it I can tell you exactly how frequency com works how it's formed and how it deforms I can tell you the building blocks of frequency combs something fundamental I discovered not too long ago. also a basic understanding so basic you'll be amazed just by using multiplication formula. a frequency comb based on a gear or clockwork is a complicated approach to something that is not what it is with the uncertain formula that will give you uncertainty is absurd. Frequency and magnetic attraction has something that's very similar to each other. like frequencies cancel

Great talk, thanks!

Great talk, thanks!

Nice! I've watched this a couple of times now, and am learning some new stuff each time I do.

1:49

Cool!

Wait should i be watching this in order?

Interesting, coupled with Artificial Intelligence humans are nearly obsolete. Welcome to the next extinction.

Fascinating

Beautiful lecture.. if possible try to record the PPT live as well as the speaker.. ppt is not greatly visible

Great presentation! Thanks for the fantastic slides and explanations! Is there any updated version which contains the DFG process instead of the f-2f-self-referencing?

3:20 Types of fossils. 🦴🐾📊

I'm ready for the Lunar-Earth Flyby for next year.

Jeffrey Plaut explains very well.. bravo

0:53. "interferometry is to live in a perpetual state of ignorance that you're trying to get over. For most of us, this is why we get married."

Good talk!

It's amazing that so many people (including me) are playing the computer game Kerbal Space Program (often with Realism Overhaul etc) and only so few of us seem to watch this excellent presentation explaning how the real Mars probes are designed and why. Then again we have youtubers with hundreds of thousands of view just showing rather boring construction work on the SpaceX Boca Chica site. Maybe we can learn that making a presentation video like this is a great start but there is just a bit of extra work to do e.g. to collaborate with the famous space-youtubers to get (some of this) presentation work in front of a larger audience. Anyway thanks a lot for the interesting presentation.

9:00 Rationale. 20:00 Payload. 📡

i know how to terraform mars but not yet cause earth is trashed

Throwing the integrated fiber in the back of a vang. How sick.

And they did it!!

What would be the modulation of this chip?

Great stuff. The SparkFun tie-up should expand the market for you even more (that's how I got interested). I'm particularly keen on remote camping and emergency scenarios. InReach does a decent job of those, but your cost model is better. More important IMHO is your open APIs on the cloud and device sides - that will allow lots of inovation. Thank you!

Well done sir, well done 👍🏻

Can adaptive optics work in the UV spectrum?

Fiber optic cable are cyber warts. wart tech, looking into a cauldron. witches? holy witches with warts batman.