These “Big Screen Billboards” in China are astonishing….
NASA’s New Horizons Spacecraft closed in on that dwarf planet at a prodigious speed and is doing a drive-by-science-mission today.
Our approach, on the face of it, was just too hard to believe. One had to have faith in the development and success of several new technical systems that should work, but have never been built…
This is one of the crystals my father collected in Germany at a “dark, filthy, wet mine, with a gift shop." It was prominently displayed on his desk at Barnes Engineering.
A confession: When I saw that jazzy, nearly turquoise rock that Perseverance recently photographed. It didn’t fit into my view of Mars at all .... totally the wrong color .... so I got overly excited.
When the main booster was on its way back to Cape Canaveral from the totally successful Dragon Space Station resupply mission, everything looked normal until…
SpaceX finally “stuck-the-landing” with Serial Number 15 flight in their Starship program. No monumental explosion at the end….
You asked about static electricity ... probably because you have seen or experienced it many times.
The results of a multi-year analysis of thousands of telescope observations in optical and radio wave spectra and direct measurement of the distance to hundreds of reference stars.
Great images of the recent “stacking” of SpaceX’s “Starship" atop their enormous Big Falcon Rocket (BFR) booster…
This video was a big eye-opener to me regarding Chinese highway construction.
This is an extraordinarily comprehensive YouTube video documenting the failures and successes during the SpaceX development of a Spacecraft that eventually might take people to the Moon and Mars.
Any first flight of a new rocket is risky. Because of this, the payload space is generally filled with a dummy weight like a big tank of water to simulate the mass of an eventual satellite payload. But not this launch.
I had never seen the wonderful falling-block illusion. The last one, with the mystery of a square disappearing from the triangular area, is much more fun as a GIF.
Here are some images that I put together using features of Google Earth that I had not explored before…
You might expect that when the Moon is fully in the shadow of the Earth it would be all black ... and it would be if the Earth did not have a thick atmosphere.
This excellent, graphic depiction of the spread of Covid-19 through the American States is a tour-de-force of data presentation.
What a fabulous collection of unnecessary warning signage. You can see the well-intentioned rules that are being blindly followed ...
