I stumbled across this video that sheds some light on Solar Roadways and exposes it for the hoax it is:

https://www.youtube.com/watch?v=ocV-...s#action=share

I must admit I thought SRs were a neat idea when I first heard about them.

https://www.youtube.com/watch?v=sTKf5cCm-9g

Sam Harris discusses the ways in which we might derive morality from a secular spectrum of human and animal well-being. This is a personal favorite of mine.

https://www.youtube.com/watch?v=-suvkwNYSQo

Only a 3 minute video - Stephen Fry explains his stance on the afterlife in a blunt and profound way. The interviewers facial expressions alone are worth the watch.

Here's a 13~ minute video on the value of earth in relation to similar exoplanets/asteroids. I arrived home drunk and high last night and was engrossed for the duration. The funky soundtracks he uses make his videos IMO.

One of the better docos on QM on youtube.
I like how it puts the audience in the mindframe of the phsysicists at the time before the double slit experiment, starting with the photoelectric effect.

If you are going to spend 1/3 of your life doing it, you should probably do it right

If you want, search also for stacks, queues, double-linked lists, etc. Fun stuff xD

If it's hard for you to believe that more people die from hippos than lions, this should help you understand.
Fwiw, that hippo was not popping up to say hello, he was bout to bite that boat in half.

Smithsonian Channel on youtube, tons of great videos, enjoy:

https://www.youtube.com/user/smithsonianchannel/videos

Famous proof that harmonic series diverges

How to simulate different gravity environments;

https://www.youtube.com/watch?v=gE6OIUXAaCM



Ps: You cant trick the ears though, https://en.wikipedia.org/wiki/Ear#Balance

Frames of Reference (1960): Very good video, blew my mind in a few places.

30 hours of quality content

Western Tradition (PBS):
https://www.youtube.com/watch?v=PkZg...FTXwRH&index=1

"Whats Up at the 2015 LHC"

https://www.youtube.com/watch?v=1i7azi2T0hc

https://www.youtube.com/watch?v=0t8yDnyOaQ8

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Dec 21 2015.

SpaceX Falcon9 1st Successful Launch/Landing on Target .

http://proxyponder.com/2015/12/space...ing-on-target/





"SpaceX successfully launched its Falcon 9 Dragon rocket and it successfully landed back on the launch target making space history.

Several prior attempts by SpaceX in the past had led to disasters in the past with the Falcon9 blowing up in mid air.

This time it was different.

Falcon 9 is a family of two-stage-to-orbit launch vehicles designed and manufactured by SpaceX. The Falcon 9 versions are the Falcon 9 v1.0 (phased-out), Falcon 9 v1.1 (current version, expendable), and the Falcon 9-R (reusable launch system).

Both stages of this two-stage-to-orbit vehicle are powered by rocket engines that burn liquid oxygen (LOX) and rocket-grade kerosene (RP-1) propellants. The current Falcon 9 (v1.1) can lift payloads of 13,150 kilograms (28,990 lb) to low Earth orbit, and 4,850 kilograms (10,690 lb) to geostationary transfer orbit."



This had 2 stages. The first stage took it to 75-80km height and speed about 5500km/h where it separated and the second stage took over to continue to take payload to low earth orbit from that point on hundreds of km higher (~600km) and with much larger speeds reached eventually that were required to get into such orbit (7.5km/sec or ~27000km/h). After that separation the first stage from over 80km high returned back to landing site Cape Canaveral, a different location than the take off site. It required 3 more burns to decelerate and achieve that.


https://en.wikipedia.org/wiki/SpaceX

https://en.wikipedia.org/wiki/Falcon_9

This most recent launch was Falcon 9 Flight 20, on December 21st 2015. The mission payload was 11 Orbcomm-OG2 second-generation satellites. Flight 20 was also the first flight of the upgraded Falcon 9 v1.1 full thrust. The first stage successfully landed at SpaceX Landing Zone 1 at Cape Canaveral, the first successful recovery of a rocket that launched a payload to orbit in history. The space shuttle was a different system in that regard. What was returning was not the first stage rocket systems. The external tank was not reusable and the 2 boosters would be later recovered after landing with parachutes in the ocean to be refurbished and reused later.

https://youtu.be/avrJYkcLBk0

Glad to see neutron star collisions getting more mainstream attention

SpaceX has successfully launched a Falcon 9 Full Thrust rocket today, April 8th 2016 at 20:43 UTC carrying the CRS-8 Dragon spacecraft full of 6913 pounds of cargo for the International Space Station. This was the 23rd Falcon 9 launch, the third Full Thrust variation and the first Dragon spacecraft to launch since the launch failure of CRS-7 last year.

A major payload onboard the Dragon, in the external trunk, is the Bigelow Expandable Activity Module (BEAM), which when attached to the space station will be inflated and act as a test bed for future potential inflatable modules.

The first stage of this launch successfully landed on the autonomous spaceport drone ship (ASDS) for the first time, it will now be secured to deck and taken back to port.

Great talk about superintelligence by Nick Bostrom.

New natural satellite of earth besides moon (small 30–100 m say > 100000 tons).



A small asteroid has been discovered in an orbit around the sun that keeps it as a constant companion of Earth, and it will remain so for centuries to come.

http://www.jpl.nasa.gov/news/news.php?feature=6537




https://en.wikipedia.org/wiki/2016_HO3

So basically it rotates around the sun in a 3D orbit near that of earth (period one year) but it is close enough to effectively complete in that period of time also a full rotation around earth (its not circular of course, this is chaotic restricted 3 body problem that may be stable for a few centuries).

Prince Rupert's Drop:
https://www.youtube.com/watch?v=xe-f4gokRBs

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edit: fwiw I went to a speech / presentation / show by Neil Degrasse Tyson last week. The title was "an astrophysicist goes to the movies" it was amazing. I'm a student (the speech was at my unis concert / theater place) so the ticket only cost me 20 bucks, but I heard for regular admission it was $250 each. Even at $250 it would have been worth every penny. My face was in pain as I was walking out because I had been laughing so hard for so long, and obv there's the science =P

here's a clip: