Wednesday, June 28, 2023

Penrose Triangle

Penrose Triangle
Also known as the Impossible Triangle

It is an optical illusion of an illogical triangle.
Can be drawn on paper.
But cannot exist as a proper solid object.

First created by Swedish artist Oscar Reutersvärd in 1934, and independently devised and popularized in the 1950s by psychiatrist Lionel Penrose and his son, prominent Nobel Prize-winning mathematician Sir Roger Penrose.

Roger Penrose described it as "impossibility in its purest form".

It was featured prominently in the works of Dutch artist M C Escher (1898-1972), whose earlier depictions of impossible objects partly inspired the Penrose Triangle.

Some of the Escheresque drawings / objects are in this link:

1)  Penrose Triangle, an illusion only, not possible as a 3-D object.

2)  How to create an illusion of Penrose Triangle
Source: Wikipedia

3)  Penrose Triangle sulpture, East Perth, WA, Australia
Source: Wikipedia

4)  Penrose Triangle sculpture, Gotschuchen, Austria
Source: Wikipedia

5)  Penrose Triangle

6)  Penrose Triangle
Source: Wikipedia

7)  Penrose Triangle

8)  Penrose Triangle

9)  Penrose Triangle

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Friday, June 23, 2023

Alcohol is bad for women's legs

Guy      : May I buy you a drink ?
Woman: Oh, no thanks, alcohol is bad for my legs.
Guy      : Do they swell ?
Woman: No, they spread.

Guy      : May I buy you a cocktail ?
Woman: Alcohol is bad for my legs.
Guy      : Do they swell ?
Woman: No. They spread.

Woman 1: I had to stop drinking alcohol because of my legs.
Woman 2: Why, do they swell ?
Woman 1: No, they spread.

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Sunday, June 18, 2023

Ambihelical Hexnut

This nut is called Ambihelical Hexnut.

What is the nut for ?

It is in the blueprint in the display stand on the left half of above pic.

The blueprint itself is in this link:

Ambihelical Hexnut
   An illusion only
   Can be drawn on paper
   Not possible as a 3-D object

To create an illusion of the Ambihelical Hexnut:
Artist & photo credit: Elber Gershon

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Tuesday, June 13, 2023

Paul Ma's wine

You must try my wine  :-)
If the name is Paul Ma, it must be execellent !!!  :-)

Paul Ma's  Cabernet Sauvignon - Merlot

Paul Ma's  Clos des Mures

Paul Ma's  Muscat

Paul Ma's  Sauvignon Blanc

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Thursday, June 8, 2023

Camera has auto-zoom

Man falling down cliff while photographing ...

This camera is amazing.
It even has auto-zoom !!

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Saturday, June 3, 2023

Foxs Wedge, Gardens of Stone NP, NSW, Australia

Location:  Gardens of Stone National Park, NSW, Australia
Date       :  2023-May-06

Foxs Wedge is a wedge-shaped rock formation jutting out from the main cliff.
An exciting rock to walk to its tip !!!

But hardly anyone knows about it; let alone goes there !!!
Why ???

Trip report to Foxs Wedge and more interesting photos are in this link:

Video by John Graham:

Video by Lisa Li:

1)  John Graham ... climbed down along the yellow arrows.

2)  Lingling Qiu ... walked along the yellow arrow.
Photo by John Graham

3)  Joan Aban
Photo by John Graham

4)  Lingling Qiu
Photo by John Graham

5)  Me !!!
Photo by Lora Ye ... Thank you !!!

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