This Mind-Bending Optical Illusion Can Be Viewed Three Different Ways

The Illusion Contest, Youtube

The Illusion Contest, Youtube

Some optical illusions get more confusing the longer you look at them. Take the triply ambiguous object illusion as an example: At first glance, it looks like a fairly straightforward 3D object, but as the video below shows, what you see changes entirely depending on which angle you view it from.

The secret behind the "3D" object in this illusion is that it isn't really three-dimensional at all. It's a flat piece of paper with shaded, geometric shapes sketched onto it, giving it the appearance of depth. This means that shapes that seem to be at the "top" of the object appear at the bottom if you turn the paper 180 degrees. The flag pin, which stays in the same spot no matter how you view the illusion, is the only element that isn't two-dimensional.

The triply ambiguous object illusion from Kokichi Sugihara received first place in the 2018 Best Illusion of the Year contest, an annual competition held by the Neural Correlate Society. You can check out more award-winning optical illusions here.

Start Your Morning Right With the Alarm Clock That Makes You Coffee

For those who can't function in the morning, a cup of coffee is key. For those who can't even function enough to make that cup of coffee, there's the Barisieur. This innovative alarm clock (now available at Urban Outfitters) awakens the sleeper with the smell of coffee and the gentle rattle of stainless steel ball bearings as the water boils.

Take sugar or milk? There's a special compartment for milk so the liquid stays fresh and cool until you're ready to use it in the morning. On the front, there's a drawer for sugar. The whole tray can even be removed for easy cleaning.

Not a coffee fan? The Barisieur also brews loose-leaf tea.

The milk vessel of the coffee alarm clock
Barisieur, Urban Outfitters

The gadget also has an actual alarm that can be set to sound before or during the coffee making process. 

This invention was thought up by product designer Joshua Renouf as part of his studies at Nottingham Trent University in the UK. Though the idea started as just a prototype for class back in 2015, Renouf managed to make it a reality, and you can now buy one of your very own.

At $445, the alarm clock is quite an investment, but for coffee lovers who have trouble forcing themselves out of bed, it might be more than worth it. Go ahead, picture waking up slowly to the smell of roasted coffee beans and only having to sit up in bed and enjoy.

Buy it at one of the retailers below:

[h/t: Design-Milk.com]

A version of this article first ran in 2015. It has been updated to reflect the product's current availability.

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If March 15 Is the Ides of March, What Does That Make March 16?

iStock.com/bycostello
iStock.com/bycostello

Everyone knows that the soothsayer in William Shakespeare's Julius Caesar was talking about March 15 when he warned the Roman emperor to "beware the Ides of March." We also all know Caesar's response: "Nah, I gotta head into the office that day." But if March 15 is the Ides of March, what does that make March 16?

At the time of Caesar's assassination, Romans were using the Julian calendar (introduced by Julius Caesar himself). This was a modified version of the original Roman calendar, and it is very similar to the one we use today (which is called the Gregorian calendar). A major difference, however, was how Romans talked about the days.

Each month had three important dates: the Kalends (first day of the month), the Ides (the middle of the month), and the Nones (ninth day before the Ides, which corresponded with the first phase of the Moon). Instead of counting up (i.e., March 10, March 11, March 12), Romans kept track by counting backwards and inclusively from the Kalends, Ides, or Nones. March 10 was the sixth day before the Ides of March, March 11 was the fifth day before the Ides of March, and so on.

Because it came after the Ides, March 16 would’ve been referred to in the context of April: "The 17th day before the Kalends of April." The abbreviated form of this was a.d. XVII Kal. Apr., with "a.d." standing for ante diem, meaning roughly "the day before."

So, had Julius Caesar been murdered on March 16, the soothsayer's ominous warning would have been, "Beware the 17th day before the Kalends of April." Doesn't have quite the same ring to it.

This story first ran in 2016.

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