Category: Uncategorized

Playing with Light, coherent light that is

So I received the green 250mW LASER yesterday. Just doing some preliminary testing.

This image you can clearly see the beam. Pretty cool.

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Now this one I was trying for persistence of vision with my phone’s camera. Came out pretty well. In addition to the double slit experiment I might try a spinning reflector – you can design circuitry to have the laser paint an image.

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Lasing at 250mW and another car review

So today I got my green 250mW laser – pretty nice cat toy if you ask me. But I want to repeat the double slit experiment again. This time with 250mW of lasing power.

Second got to drive a 2016 Honda CR-V today. Nice little car – even if it does have a propensity to tip over. I did have it up to 100MPH though – nice! And that was in Eco mode too.

And if you hadn’t guessed by now I love getting cars up near the red line of the tachometer. But the Honda at 100MPH was only ticking about 3,500 on the tach. I’m pretty sure it’s a 4 cylinder engine too. Not bad.

Unseasonably warm in Providence

I can recall last year – turned the heat on beginning of October. But this year here we are late October and temperatures outdoor are 60’s and low to mid 70’s. 76F today in fact.

Now I’ve seen the long range forecasts – this trend is expected to continue into December/January. So if we get a one month long winter I’m all for it. Of course I don’t want the attendant water level rise that goes with it but hey, waterfront property and all.

 

 

 

Experimenting with Science

You know someone posted about Atheists having never done a scientific experiment that supports what they say.

I’m one that has. For instance the famous double slit experiment which demonstrates the wave duality of photons and electrons and it’s derivative string theory. I used a laser to do the experiment and I saw the interference pattern that demonstrate the wave nature of photons. It was interesting.

Plus I experiment with electrons too – in building electronic circuitry. Things like radio projects, computing, power supplies, etc. For instance one is a 5VDC power supply – from line current and voltage. Step it down, rectify it, smooth out the ripple and voila – if you really want it solid a voltage regulator works.

But you get the idea – not only can I talk the talk, but walk the walk.

The answer to how did something come from nothing

This video pretty much sums it up. There’s energy in empty space. Zero point and other types of energy exist too.

It’s all based on Quantum Physics. Some strange and wonderful things have come out of that field of study. It has pretty much exposed the innards of the universe.

And the video talks about vacuum energy, the Casimir effect etc. Really fascinating stuff. And it has the added benefit of being one more piece of evidence for the fact that no gods have ever existed.

Car Review: 2017 Subaru Crosstrek

So got to drive a new Subaru Crosstrek this evening. I will say it’s much more refined than the Impreza I’ve driven recently.

For example, the Impreza is a bit sloppy at 80MPH and higher. The Crosstrek on the other hand I had that baby up to 100MPH and she was stable as all can be.

In addition I note the engine on the Crosstrek revs a lot less than that in the Impreza. Very smooth.

And it carries the tradition of three glass panels, one in cluster, center of dash and the big one on the infotainment system. The interface for Bluetooth is more refined too.

If my heart weren’t set on a VW Golf TSi I’d strongly consider the Subaru – they’re pretty reliable vehicles too.