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A Practical Idea?

This just might work.  Which is better?   


I Bought a Crookes Radiometer

I found this radiometer  GIF on the internet. 

I've had a radiometer for decades, fascinated by the way it spins in the light.  It works with sunlight or an incandescent light bulb.
I finally decided to order a new one after mine stopped working.

Here's a photo from the internet that looks just like mine.


Sir William Crroke invented the radiometer.



Below are explanations about how it works. 
It's not so simple!
====================================


"The radiometer is made from a glass bulb from which much of the air has been removed to form a partial vacuum. Inside the bulb, on a low friction spindle, is a rotor with several (usually four) vertical lightweight vanes spaced equally around the axis. The vanes are polished or white on one side and black on the other.
When exposed to sunlight, artificial light, or infrared radiation (even the heat of a hand nearby can be enough), the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing.
Cooling the radiometer causes rotation in the opposite direction."
(From Wikipedia)
=============================
Continuing from Wikipedia, I found an explanation which is difficult to follow.
Crookes incorrectly suggested that the force was due to the pressure of light.[6] 
Another incorrect theory was that the heat on the dark side was causing the material to outgas, which pushed the radiometer around
A partial explanation is that gas molecules hitting the warmer side of the vane will pick up some of the heat, bouncing off the vane with increased speed.       Albert Einstein showed that the two pressures do not cancel out exactly at the edges of the vanes because of the temperature difference there. The force predicted by Einstein would be enough to move the vanes, but not fast enough.[9]  
The final piece of the puzzle, thermal transpiration, was theorized by Osborne Reynolds[10] ; in an unpublished paper of 1879.
A lighthearted video explaining how it works in easier terms:


Vampire Masquerade Waltz

Watch closely for the fine details. I love this video. Make sure to use the full screen.




Here's another version that I like:


Vampire Masquerade

Watch closely for the fine details. I love this video. Make sure to use the full screen.




Here's another version that I like:


Some History About Halloween

I learned a lot with this video.  Enjoy!

Use full screen for a better experience.


I Bought a Stirling Engine

(Wikipedia)

When I saw this engine on Amazon I was fascinated. At first I was looking for a desk ornament but this was much better. It looks good and it's functional.

Here's a photo of my Stirling engine set on top of an insulated coffee mug. It works great and I had it running for 4 hours one time. That was the longest time for me.


I placed it on a dish filled with crushed ice instead of a coffee mug, it still worked! With ice cubes on top and a coffee cup at the bottom it goes faster.


This video explains how it works:




96th Birthday

My mother-in law just turned 96! I hope I can reach her age someday. I don't think she does anything special to stay healthy. She must have some pretty good genes.



The women of four generations

Evey used her balloon to hide her great-grandmother's face!

Evey's brother Miles is near the center with her uncle, his father on the left and I'm on the right. His great-grandfather passed away several years ago.



Visited by a Tree Frog

The other night I saw a frog on the side of my house on the back yard side. It was so cute and not afraid of me so I just had to take a photo.









Is This Negative Thinking?


Never mind being half full or empty. 
Maybe it's the wrong glass to start with.

Remember the best seller from decades ago The Power of Positive Thinking?  I came across this video of some philosophical ideas that seem to go the other way, like "The Power of Negative Thinking".

I have a relative who always complains about how bad the world is.  After a short while with him my mood begins to drop. That's why I try to limit my time with him. He looks at you as if you are crazy if you try to say anything positive about life. Sometimes I can make him change for a few seconds before he returns to his old self.

I made my daughter laugh when I told her that he belongs to a society of negative thinkers. I raise my eyebrows to give her a sign about what is coming next when we get together and he begins his negative discussions.

Anyway, this video seems to go for what is a negative view of life. What do you think?


(Click on image to start the video.)



One Day at a Time

Lately, I've been feeling a bit overwhelmed by my health problems and Lynette's health problems.  It would be good if one of us was healthy so he can take care of the other one. Now it depends on how each one of us feels on a particular day.

Looking for some encouragement, I skimmed through the web. Here's something that helped:

(I couldn't get the size right so click on it to make it legible)










Image

I found this on the Principetto Blog!


Hornet's Nest


Lynette noticed a hornet's nest on one of our trees. It was a pretty large size and we knew we could not get rid of it on our own. A spray can from Loews just would not be practical.

The exterminator did a great job. Here are a few photos I took:




Image

As soon as I get some energy back I'll try to post more often.

National Drive-Thru Day, July 24th

From:
 Celebrate Every Day | National Day Calendar

I never used to use the drive through until I started having trouble with my health.  Now I can appreciate it.  It beats walking into the restaurant with my walker except its hard to eat the meal in my car, so I bring it home. Half the time I still go inside and kind people help me.  But I'd rather be independent.

Text From:

NATIONAL DRIVE-THRU DAY

"National Drive-Thru Day on July 24th recognizes an innovation conveniently going strong today. The drive-thru reached its iconic zenith in the 1950s but stayed strong through the 60s, 70s and beyond.  People have enjoyed this service since the 1930s.
The ease of dropping off or picking up an item without getting out of the car may be something we take for granted. Of course, many studies point to the benefits and drawbacks associated with using the drive-thru.
The first and most obvious that comes to mind is the ease of dropping off or picking up and item. Whether its the mail, a prescription or the dry cleaning, pulling up to a window or a slot and passing the article through is eminently easier than even finding a parking spot. Then, if we have children, we collect our children, our item and wait in line. After waiting, we usually search for our parking spot while juggling children and once again pile them back into the car. When multiple stops are involved, repeat the previous steps. Check the ease of use box.
Secondly, many people think the drive-thru is faster. While that might be true at some locations, it will depend on the type of service, time of day, and where you are located. For example, a long line in the drive-thru at the bank may mean no waiting inside. The same may also be true at your favorite fast-food restaurant. However, if you only need to drop off a letter at the post office, use the drive-up option.
Finally, accuracy tops the list of some drive-thru specialists. Again, this criteria is hit or miss. Depending on the type of business, time of day and location, accuracy varies. Interestingly, in 2018, Chic-fil-A mastered this arena with 97.3% accuracy.
Did you know:
  • There are more than 211,000 fast-food restaurants in the United States.
  • The drive-thru format was pioneered in the United States for banking services.
  • Hamburgers sold for just 18 cents at some of the first drive-thru restaurants.
  • Restaurants, coffee shops, liquor stores, pharmacies, and many more services utilize drive-thrus for quick service.
HOW TO OBSERVE
Enjoy the day by uses all the drive-thrus available to you.  Post on social media using #NationalDriveThruDay to encourage others to celebrate the day with you.
HISTORY
America’s first drive-thru burger chain, Jack in the Box, created National Drive-Thru Day to celebrate America’s love of convenience by car."

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