This Is The Hollow Mask Illusion.

Smooth Ride, Bumpy Road

Why are wheels circular? Why aren’t they triangular or square shaped?

That is a question that you might have pondered at some point in your life ( perhaps as a shower-thought? ) But sometimes even the most simple questions have the most elegant answers!

A square wheel can roll smoothly if the ground consists of evenly shaped inverted catenaries of the right size and curvature.

What is a Catenary?

Well, it is the curve that a hanging cable assumes under its own weight when supported only at its ends. You find these everywhere!

Those chains on the pavement,

those hanging cables on a power transmission station,

or maybe a chandelier is of your type

All are catenaries!

Although it superficially resembles a parabola, it is NOT!

Practicality

The mythbusters (like always) decided to give the four wheel vehicle a try.

And found out that, get this - with speed, a truck fitted with square wheels can deliver a relatively smooth ride, despite that bouncy start!

Well, although circular wheels still remain as the king of wheels, it is nice to know that we do have some alternatives up our sleeve!

Merry Christmas :)

PC: Etan J. Tal, kamel15

Crazy Looking Bamboo Tower Creates 25 Gallons of Drinking Water Per Day From Thin air

This crazy looking tower creates 25 gallons of drinking water per day from thin air. It’s basically an atmospheric water collector which gathers dew from the air.

“…The 9 m tall bamboo framework has a special fabric hanging inside capable to collect potable water from the air by condensation…”

It’s called the WarkaWater:

“…The name ‘WarkaWater’ comes from the Warka Tree, a giant wild fig tree native to Ethiopia, traditionally used for public gatherings and school education. The Warka Tree is an archetype of the Biennale theme ‘Common Ground’…”

The simple and practical, yet elegant design powers out ahead of any of the commercial atmospheric water generators on the market which cost thousands more to build than this.

This is a wonderful water generation idea, that’s inexpensive, and actually beautiful to look at.

Water is life, and being designed after a tree. This is a real Tree of Life.

Centrifugal force and seat belts

The basic concept of a seatbelt is to protect you in an automobile collision by holding you in your seat. This prevents you from flying forward and colliding with the dashboard or windshield.

How do you do that ?

Many common seat belts design have something known as a centrifugal clutch. This arrangement has a weight attached to the end of a spool

When the spool rotates at a low speed, the weight is held through spring action and is allowed to spin freely.

But you must have noticed that if you try to pull the seat belt faster then it kinda gets stuck.

This is because as you rotate the spool faster, centrifugal force causes the weight to be pushed out and that stops the spool from rotating further.

This adds tension to your seat belt and holds you to your seat at the time of a crash. 

Have a great day!

* Other seatbelt mechanisms

** Seatbelt physics

This month on FYP!

It has been a blissful month in physics with the nobel prize for the work on gravitational waves and LIGO swiftly striking back with the detection of a neutron star merger.

At FYP! we have started to dwell a little bit into the essence of condensed matter physics while exploring some really cool science and engineering along the way.

Here’s what went down on FYP! this month:

Nobel prize in physics article on Gravitational waves

Gravitational waves, Light and Merging neutron stars

Paramagnets and Combinatorics

Diamagnetic levitation - Ig Nobel prize(2000)

Levitating frogs and superconductivity

Revisiting rolling shutter

Cooking with a computer (the importance of a heat sink on a computer)

Cartoon laws of physics

Beautiful proofs (#3) - Euler’s sum

Have a great day!

Due to the Mandela Effect, we remember things that didn’t happen or exist. Get the answer and why in our NEW VID: https://youtu.be/hvu4D1jngCY

Just imagine a world full of beautiful stained glass windows which also generate electricity…

[Oxford Photovoltaics]

It’s a good Sunday. 🤗

To get the Sunday week summary delivered to your inbox subscribe here.

Experimental Saturday

Meet the ‘400k pie’

Banana whey protein bread

Interesting and fun stuff

Work vs Hobbies [Comic]

Use a Pencil to Freeze Sauce into Usable Portions

Bake the Perfect Pound Cake

Best Chocolate Chip Cookie Bake Off

Recipe lists

10 PUMPKIN SPICE FAVORITES

Ten Minute Meal Prep Recipes and Prep Ideas

10 DESSERTS AND COOKIES TO TRY FOR FALL

20 PUMPKIN RECIPES FOR FALL

25 APPLE RECIPES TO GET YOU READY FOR FALL

19 OF THE BEST EASY & HEALTHY ONE PAN MEALS

Our Favorite Pumpkin Recipes

Food days

Cheeseburger 🍔

Butterscotch Pudding

Rum Punch 🍹

Pecan Cookies

White Chocolate

Top recipes!

Classic Snickerdoodles

Fresh & Flavorful Strawberry Cake Recipe

Double Chocolate Brownies

RED VELVET SUGAR COOKIES RECIPE

BROWN SUGAR POUND CAKE

Ginger Fig Tart with Chestnut-Almond Crust {vegan & gluten-free}

RED VELVET MACARONS WITH CREAM CHEESE FROSTING

My Mom’s Homemade Spaghetti and Meat Sauce

APPLE FRITTER PANCAKES

Bacon Tomato and Spinach Spaghetti

PUMPKIN PIE SPICE PROTEIN SMOOTHIES

Apple Spice Ricotta Donuts

pumpkin gnocchi with sage butter sauce

Mashed Potato Fries

QUICK POTATO ROLLS

Follow for recipes

Get your FoodFfs stuff here

Plastics made fireproof thanks to mother-of-pearl mimic

A method for quickly coating objects in a thin, environmentally safe mother-of-pearl-like film could protect food or electronics from the elements

It’s a technicolour dreamcoat for your crisp packet – a strong, flame-retardant and airtight new material that mimics mother of pearl.

The natural version, also called nacre, is found on the inner shell of some molluscs, where it is built up of layers of the mineral aragonite separated by organic polymers such as chitin. It is remarkably strong, without being brittle or dense.

We would like to use nacre and similar materials as a protective coating in many situations. However, making them is a slow and delicate process that is difficult to recreate at any useful scale. Artificial nacre-like materials are usually painstakingly built up layer by layer, but Luyi Sun at the University of Connecticut in Storrs and his colleagues found a way to do it all in one go.

Continue Reading.

Human fingers can detect nano-size objects. This means you not only have the ability to feel a tiny bump the size of a large molecule, but if your finger was the size of Earth, you could determine the difference between a house and a car. Source

Flat tires could eventually be a thing of the past. Michelin has unveiled the concept for a 3-D printed, airless tire.

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