Is there a world outside of ourselves?

We (I think!) experience the universe as if we are just a small part of it, yet when we die all our senses (I think!) die with us. This raises a philosophical question about "is what I perceive the same as you?".

Does anyone know of anything that proves the universe exists beyond ourselves? This question has been asked here before. Perhaps it is a tautology and impossible to prove.

As an aside, when I was at university a fellow student was set an essay question:

"Are all truth functional schemas primarily analytic?"  

I did not understand the question then and am still no wiser!

ATS Mini RX video

 This video is available from Tech Minds.

10m 2.5W FT8 (Saturday)

My gear was turned on at about 0715z. At the moment TX is enabled.

UPDATE 1029z:   2 English stations have spotted me and I have spotted 97 stations on RX with the best ZS2DL (9836km). Just on 10m FT8 RX for the last hour.

UPDATE 1336z: Been back on TX for about 20 minutes. On TX spotted by 17 stations and on RX 425 stations.

UPDATE 1504z:  Back to RX only. 668 stations spotted on RX. At the moment we are experiencing very good conditions on 10m. In a few years time it will be very different. Enjoy it!

UPDATE 1952z: 1105 stations spotted here on RX today on 10m FT8 RX. See map. QRT soon.

Near Islands

No, I'd never heard of these either!  

Apparently, they are part of the Aleutian Islands off Alaska and they belong to the USA. 

They are in the Baring Strait dividing Russia and the USA by just a few miles.

They came up when I was wondering why the International Date Line was not straight!

See https://en.wikipedia.org/wiki/Near_Islands

What is gravity?

For years, scientists have been trying to understand gravity. Both Newtonian and quantum theory appear to give different answers. There's a New Scientist video that tries to explain this puzzle.

I think it's true to say we really understand very little about things.

Sunspots - Saturday February 21st

 Solar flux is 111 and the SSN 34. A=12 and K=3.

US Supreme Court overrules Trump on tariffs

 The US Supreme Court has overruled President Trump 6-3 on tariffs. 

See https://www.bbc.co.uk/news/live/c0l9r67drg7t

Andrew Mountbatten-Windsor

In the last few days, we have faced a constitutional crisis in the UK like never seen in 350 years. Times Radio has a video about it. It brings to the fore wealth and privilege.   Our monarchy has some benefits for the country, but it lacks transparency.

10m 200mW WSPR TX (Friday)

My beacon was turned on at about 1515z.

UPDATE 1612z:  Spotted by 18 stations so far.

UPDATE 1953z:  Spotted by 31 stations with 2 in Brazil. Now QRT.

The evolution of computers

In my lifetime computers have come a very long way.  No doubt the next evolution will be quantum computers. 

Also far higher memory capacities are likely. I can imagine people in 30 years' time being amazed we managed with just 10TB hard drives. It would not surprise me if someone, somewhere, makes a tiny memory that has the capacity of the human brain.