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John Hartley PhD

@starshipengineer.bsky.social

Physicist, pilot, airplane owner (1966 Beech Debonair) Topics of interest include foundations of physics, flying, cats, interstellar space flight and the long term survival of humanity.

109 Followers  |  178 Following  |  90 Posts  |  Joined: 07.10.2024  |  2.3851

Latest posts by starshipengineer.bsky.social on Bluesky

Tomorrow is July 4th. Many towns across America hold a reading of the Declaration of Independence. It might be a good day to attend one.

03.07.2025 19:56 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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When history marks the point where we lost the future to China, this will be it.

02.07.2025 19:11 β€” πŸ‘ 9336    πŸ” 3483    πŸ’¬ 499    πŸ“Œ 209
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A Demonstration of Interstellar Navigation Using New Horizons As NASA's New Horizons spacecraft exits the Solar System bound for interstellar space, it has traveled so far that the nearest stars have shifted markedly from their positions seen from Earth. We demo...

*Interstellar* navigation using two stars. Cool. πŸ§ͺπŸ”­

30.06.2025 02:31 β€” πŸ‘ 39    πŸ” 11    πŸ’¬ 2    πŸ“Œ 2

This is all because he thinks the turbines off the coast of Aberdeen, ruin the view from the first tee

12.06.2025 16:08 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Does anyone seriously think trump is going to send all that military hardware and troops back home after the parade is over?

09.06.2025 16:57 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Is this both hardcopy and digital going away? Can’t tell from the notice.

01.06.2025 23:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Trump Has Cut Science Funding to Its Lowest Level in Decades (Gift Article) The lag in funding extends far beyond D.E.I. initiatives, affecting almost every area of science: chemistry, computing, engineering, materials and more.

NSF Physics was cut by 85%, basically wiping out most of its capacity for supporting research.

NSF Astronomy was cut by 53%

Undergrad education was cut by 71% and research on learning by 79%

Graduate education was cut by 100% to ZERO.

#GiftLink βš›οΈπŸ”­

www.nytimes.com/interactive/...

22.05.2025 15:34 β€” πŸ‘ 1174    πŸ” 808    πŸ’¬ 38    πŸ“Œ 90

Just because there isn’t a bonfire doesn’t mean it’s not book burning.

09.05.2025 10:51 β€” πŸ‘ 25    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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🧡
NY-17 Rep. Mike Lawler had a local social worker physically dragged out of his town hall Sunday night.

Emily Feiner was singled out by private security, lifted out of her seat, as the crowd chanted β€œlet her stay” and β€œshame, shame.”
She’s a constituent.
Not a threat.
Fascism again.

05.05.2025 01:23 β€” πŸ‘ 8989    πŸ” 3866    πŸ’¬ 876    πŸ“Œ 847
Protest sign that reads β€œIf foreign bombs & guns did this to us we’d already be at WAR”

Protest sign that reads β€œIf foreign bombs & guns did this to us we’d already be at WAR”

My protest sign from several protests ago.

02.05.2025 11:43 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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May 1st March in NYC

01.05.2025 22:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

And for those of us outside of academia, be prepared to pay about $40 each to access journal articles behind paywalls.

30.04.2025 13:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

We were there!

19.04.2025 20:42 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Flyer with images of blossoming flowers, accompanied by text:

4/19 New York Fights Back
Protect Migrants
Protect Our Planet

Date: Saturday, April 19
Time: 12pm
Location: Bryant Park

Flyer with images of blossoming flowers, accompanied by text: 4/19 New York Fights Back Protect Migrants Protect Our Planet Date: Saturday, April 19 Time: 12pm Location: Bryant Park

Flyer with images of blossoming flowers, accompanied by text:

April 19, 12pm Saturday 
Before Earth Day

March for Migrants & Protect the Planet!

New York Fights Back
No broligarchs! No kings!
Put people over profits!

Flyer with images of blossoming flowers, accompanied by text: April 19, 12pm Saturday Before Earth Day March for Migrants & Protect the Planet! New York Fights Back No broligarchs! No kings! Put people over profits!

Flyer with images of blossoming flowers, a large butterfly, and a group of smaller butterflies in the distance, accompanied by text:

Declaration of Interdependence

Flyer with images of blossoming flowers, a large butterfly, and a group of smaller butterflies in the distance, accompanied by text: Declaration of Interdependence

Flyer with images of blossoming flowers, accompanied by text:

Our fates are intertwined β€” when ICE attacks migrants, when polluters poison neighborhoods, when billionaires cut our jobs, they attack us all. This Earth Day weekend, we declare our interdependence and fight back as one.

Flyer with images of blossoming flowers, accompanied by text: Our fates are intertwined β€” when ICE attacks migrants, when polluters poison neighborhoods, when billionaires cut our jobs, they attack us all. This Earth Day weekend, we declare our interdependence and fight back as one.

NYC, it’s time to take to the streets again.

We’re joining over 40 cosponsors to protest authoritarianism, and march for a planet where we place people over profit.

πŸ“… Saturday, April 19
⏰ 12pm
πŸ“ Bryant Park

We’ll see you in the streets.

13.04.2025 23:00 β€” πŸ‘ 695    πŸ” 258    πŸ’¬ 14    πŸ“Œ 14

So large I never heard the bagpipes, we had a band marching with us!

05.04.2025 20:17 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

My 3rd protest this year and far far larger than the other ones

05.04.2025 19:37 β€” πŸ‘ 34    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Do you know which HANDS OFF event you are attending today? Below if a link to find nearest event to you! πŸ‘‡

05.04.2025 13:00 β€” πŸ‘ 815    πŸ” 265    πŸ’¬ 60    πŸ“Œ 15

New York City, Bryant Park, 1-3 pm.

02.04.2025 00:41 β€” πŸ‘ 81    πŸ” 9    πŸ’¬ 1    πŸ“Œ 1

Plan your sign parties!!! Invite your friends!!!

It's time to Stand Up for Science, again!

#standupforscience
#handsoffourscience
#scienceforall

29.03.2025 13:26 β€” πŸ‘ 128    πŸ” 45    πŸ’¬ 4    πŸ“Œ 3

Like most of the DOGE cuts, this is a good idea if:

a) you have no idea how anything works, you're so profoundly ignorant you're not even aware of what to consider when deciding if an idea is good or bad but you like firing people; or

b) you simply hate America and do not want it to succeed.

26.03.2025 18:48 β€” πŸ‘ 505    πŸ” 174    πŸ’¬ 11    πŸ“Œ 2
Planes panel disassembled for upgrade

Planes panel disassembled for upgrade

Servos for the autopilot installed in tail one

Servos for the autopilot installed in tail one

Another view of autopilot servo mount

Another view of autopilot servo mount

Autopilot installation in progress

27.03.2025 00:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Interesting. This is the only link in the USPTO database that has Ivanka Trump’s name
www.uspto.gov/sites/defaul...
It talks about trademark β€œsquatting β€œ and China. Bad actors can trademark celebrity names and one defense is to trademark it yourself before they do. But why voting machines?

22.03.2025 13:45 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I searched google patents and the uspto site to try and find a patent with Ivanka’s name on it. Can anyone point to the source of this?

22.03.2025 12:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

trump will probably have them go to the Apollo 11 site and have them take down β€œWe came in peace for all mankind” as too inclusive.

22.03.2025 12:34 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Playing a bad hand badly Schumer's submission was months in the making.

New in PN: Playing a bad hand badly

"Democrats left themselves with no good options, then justified their surrender on the ground that there were no good options."

18.03.2025 13:12 β€” πŸ‘ 4154    πŸ” 680    πŸ’¬ 259    πŸ“Œ 73

If you are on your way to a protest against Trump/Musk, don't forget to notify you local media (print and TV).

Don't assume they already know.

16.03.2025 03:39 β€” πŸ‘ 4134    πŸ” 907    πŸ’¬ 97    πŸ“Œ 43

I’m in that picture!

18.03.2025 00:05 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Stand Up for Science: In Defense of Curiosity "President Trump and his administration lack the humility required to take an interest in understanding the world around them."

Excited to see my #StandUpForScience speech in @westword.com today.
www.westword.com/news/colorad...

16.03.2025 17:51 β€” πŸ‘ 105    πŸ” 14    πŸ’¬ 3    πŸ“Œ 1

Isaac, Jimmy Neutron’s younger brother.

15.03.2025 14:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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TOMORROW!!! If you aren't near Washington DC, be at your state capitol at noon local time. Let's do this!! β€οΈπŸ‡ΊπŸ‡Έ

13.03.2025 14:13 β€” πŸ‘ 1613    πŸ” 389    πŸ’¬ 66    πŸ“Œ 13

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