Hop David (@hopdavid41) 's Twitter Profile
Hop David

@hopdavid41

ID: 570296253

calendar_today03-05-2012 19:13:50

10,10K Tweet

429 Followers

257 Following

Cliff Pickover (@pickover) 's Twitter Profile Photo

Mathematics, geometry, reality. This strange portal is a kind of "harmonic perspective" utilizing parabolas. A key to another universe. By Hop David, Hop David, Used with permission.

Mathematics, geometry, reality.

This strange portal is a kind of "harmonic perspective" utilizing parabolas.  A key to another universe.

By Hop David, <a href="/HopDavid41/">Hop David</a>, Used with permission.
Hop David (@hopdavid41) 's Twitter Profile Photo

Invert colors and do a 50% overlay. If the images are identical it will be a flat field of grey. Obviously the text above the guy on the right is different.

Invert colors and do a 50% overlay. If the images are identical it will be a flat field of grey.
Obviously the text above the guy on the right is different.
Cliff Pickover (@pickover) 's Twitter Profile Photo

Mathematics, topology, geometry, simulation, algorithms. Watch this Cosmic Eversion Loop. Particle Tube Metamorphosis. Notice how the interior surface of the tube evaginates to become the "exterior." By Acid Boy 💊, acidboy.com, Used with permission.

Cliff Pickover (@pickover) 's Twitter Profile Photo

"Mathematics, rightly viewed, possesses not only truth, but supreme beauty—a beauty cold and austere, like that of sculpture." ~Bertrand Russell Image: Johannes Kepler, 1619.

"Mathematics, rightly viewed, possesses not only truth, but supreme beauty—a beauty cold and austere, like that of sculpture." ~Bertrand Russell

Image: Johannes Kepler, 1619.
Hop David (@hopdavid41) 's Twitter Profile Photo

1st MXers needn't send stuff moonward or even GEO. If they shaved a few km/s off re-entry they could make upper stage re-use doable. MXers need massive anchors. Musk is de-orbiting a ~tonne of EOL StarLink sats every day. These could build a momentum bank.

Hop David (@hopdavid41) 's Twitter Profile Photo

Using EOL StarLink sats and discard upper stages, 152 days to accumulate a 500 tonne momentum bank for an orbital tether. Grok, are the solar panels of EOL StarLink sats still good? How much power from these panels from the salvaged sats provide?

Hop David (@hopdavid41) 's Twitter Profile Photo

Not only could EOL StarLink sats provide a hefty momentum bank anchor for a rotovator, but also a lot of mega watts from the solar panels. Accumulating acres of orbital solar panels is step towards Kardashev II civilization. @Grok is that one of Elon's goals?

Robert Zubrin (@robert_zubrin) 's Twitter Profile Photo

If Trump cared about our troops he would give Ukraine the weapons to destroy the factories that are making the stuff being fired at us. But no, if Putin wants to help Iran kill Americans in uniform, that ok by Trump.

Hop David (@hopdavid41) 's Twitter Profile Photo

Occasionally I do photograph based pen and ink drawings. This was a fun one. I think I charged $50. When I was a kid I wanted to be an inker for Marvel comics. This wasn't really pen and ink. I draw these on Wacom's Cintiq tablet in Adobe Photoshop.

Occasionally I do photograph based pen and ink drawings. This was a fun one. I think I charged $50.
When I was a kid I wanted to be an inker for Marvel comics.
This wasn't really pen and ink. I draw these on Wacom's Cintiq tablet in Adobe Photoshop.
Duty To Warn 🔉 (@duty2warn) 's Twitter Profile Photo

On Fox News, Trump suggested that oil tankers and their commanders should show some guts, brave the risk, and navigate their ships through the Strait of Hormuz. The tankers replied in unison that they would love to do this but are simply unable, due to bone spurs.

Hop David (@hopdavid41) 's Twitter Profile Photo

Newton's world changing achievement was showing inverse square gravity implies Kepler's 3 laws. Kepler also deduced light intensity falls off with inverse square of distance. And Bullialdus used Kepler's reasoning to argue that gravity should also fall off with 1/r^2.

Hop David (@hopdavid41) 's Twitter Profile Photo

I'd like to learn more about this. What did the church do to the heretic who discovered Jupiter and Saturn? Hopefully they did not burn him (or her) on the stake.

The Intellectualist (@highbrow_nobrow) 's Twitter Profile Photo

"Not to provoke Putin is to show weakness, which will 100% provoke Putin...A developing and democratic Ukraine is a threat to Putin's power..[Putin] will try to cut more Ukraine and then Baltics." - Senator John McCain (R-AZ)

Peter Hague (@peterrhague) 's Twitter Profile Photo

Goddard was ridiculed in the New York Times, by a snarky journalist who did not have a good grasp of physics (glad we don't have those types anymore!)

Goddard was ridiculed in the New York Times, by a snarky journalist who did not have a good grasp of physics (glad we don't have those types anymore!)
Michal J A Paszkiewicz (@michalyoudoing) 's Twitter Profile Photo

War🔨Hodl Idse Val FRANCIS ⚜️ BULLBITCOIN.COM Rodney Stark is addressing a problem - namely the Enlightenment/Conflict thesis propaganda claim that somehow the scientifically method magically appeared in the works of Galileo or Newton and that this was in opposition to religion. Stark definitely shows that this was