Tag Archives: spirit

Pepper’s Ghost, Part II

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this hummingbird 1_edited 1This is not the first Pepper’s Ghost illusion to appear on Pop Goes the Page. Back in 2020, we posted a kid-friendly version featuring a spirited fox. The illusion is basically a reflection trick, but it’s very effective when done right!

seeing spirits   You’ll need:

  • A clear plastic drink container lid
  • Paper (heavier paper or thin cardboard works best)
  • A small section of clear plastic (like the lid of a food container)
  • Scissors and pencil for construction
  • Cell phone

The project was originally designed and posted by artist Joshua Ellingson on his Instagram. First, wash a clear plastic drink lid. Then cut a half circle template out of paper. When you have a half circle that correctly fits at a 45 degree angle inside your cup lid, trace the paper template onto a piece of clear plastic. We used an acrylic gift box, but plastic food containers work great too. Tape the plastic half circle inside the cup lid. The hardest part is getting that 45 degree angle just right. I made about 4 templates before I finally nailed it. Here’s my finished cup with the plastic half circle:

Head to YouTube for a Pepper’s Ghost illusion on a black background. We tried a couple different ones, but had the most success with this hummingbird. Cue up the video on your phone, maximize it to full screen, and lay the phone on a tabletop. Place the cup lid on top. Finally, roll the video and turn off the lights! Your object will appear to float inside the cup lid! It’s really quite remarkable.

The original designer, Joshua Ellingson, also made a GIANT version of this craft with a thrift store bubble chair and his flat screen television. It’s a must see! And Disney’s Haunted Mansion famously employs this illusion, including an entire ballroom of ghosts!

Cotsen Ghosties

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book cover 3Last Halloween season we took a stroll through our special collections pumpkin patch. Today, we’re looking for ghosts! And we found them in this amazing optical illusion book titled Spectropia; or, Surprising Spectral Illusions. Showing ghosts everywhere, and of any color. Published by J.H. Brown in London in 1864, the book teaches the concept of “the persistency of impressions, and the production of complementary colours on, the retina.”

The illusion is very simple. In the image above, stare at the small black dot by the ghost’s neck for 20-30 seconds. Then look away at a white wall or ceiling. Her ghostly image will appear in your vision, except in different colors (in this case green wreath, blue ghost)!

Scientifically speaking, this is called an afterimage. The color receptors in your eyes work in pairs (red/green, blue/yellow, etc.). When you stare at the drawing and one color fatigues your receptors, the other receptor will step in and dominate for a bit.

The book has a very lengthy description of this concept, as well as viewing instructions that include having the “gaslight turned low.”

Spectropia also has a disclaimer at the beginning: “As an apology for the apparent disregard of taste and fine art in the plates, such figures are selected as best serve the purpose for which they are intended.”

I wish they might have reprinted the disclaimer before THIS image, which honestly is going to haunt me clear through December:

The book concludes with a grand finale image that is not a ghost, but a rainbow! Definitely try this one, because it is so cool to see the colors flip in the afterimage!

Looking more more optical spooky fun? Try making our tabletop Pepper’s Ghost illusion!

Images from Spectropia; or, Surprising Spectral Illusions. Showing ghosts everywhere, and of any color. J.H. Brown, London. Griffith and Farran.1864. Cotsen Children’s Library, Department of Special Collections, Princeton University Library.

Destination: Sleepy Hollow

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When the pumpkins begin to grow ripe on the vine, my thoughts always turn to my favorite spooky story since childhood, Washington Irving’s The Legend of Sleepy Hollow. I’ve always wanted to visit Sleepy Hollow and walk across that famous bridge, and this past weekend, I got my chance!

The tale was first published in 1820, and begins in Tarrytown, New York, on the banks of the Hudson river. Sleepy Hollow is a quiet glen a few miles away. Tarrytown most definitely exists, and North Tarrytown was officially renamed Sleepy Hollow in 1996. Here you will find all the famous sites, such as the cemetery where the Headless Horseman is said to materialize.

I love the graphics on top of this historical sign…

The churchyard is part of the Old Dutch Church of Sleepy Hollow, which was constructed in the 17th century. Featured in Irving’s short story, it’s one of the of the oldest churches in New York State.

From the church, we headed down to the FAMOUS BRIDGE. Which, as it turns out, is the “is the most popular destination in Sleepy Hollow that doesn’t exist.” Because the simple 1700s wooden bridge that inspired Irving has long since disintegrated (you can read a little more bridge history here).

The bridge is located in a pretty major intersection with a gas station nearby. So it’s almost a blink-and-you’ll-miss-it historical literary moment. Here’s the bridge as it stands today…

And here’s a postcard image of the historic bridge! With the logs, the stonework, and the silken water…you can absolutely imagine being clocked by a pumpkin at a ghostly hour.

Not far from the bridge is the town’s official statue, depicting Ichabod’s fatal race home. This was a bit of a surprise too. I expected something more traditional. But I like the metal layers on this interpretation – they’re almost like a paper cut silhouettes. Unveiled Halloween 2006, the statue was designed by artist Linda Perlmutter, and fabricated by MILGO/BUFKIN.

The Sleepy Hollow cemetery, church, bridge, and statue are all across the street from the Philipsburg Manor Upper Mills, which is a restored 18th century living-history museum (you can read more here). It’s currently closed for restoration work.

We also got an unexpected surprise at the nearby Philipse Manor train station, which operates on the Metro-North Railroad’s Hudson Line. The station’s pedestrian bridge had really cool stained glass windows…

And check out the VIEW of the Hudson River on the other side!

I also recommend heading to Patriot Park, which is on the border of Sleepy Hollow and Tarrytown. It boasts stone bridges, staircases, and water. And plenty of green space to run around on!

At this point, we were getting hungry, so we headed over to Tarrytown for some bites. Main Street was charming, walk-able, and there were plenty of eateries to chose from.

One other building of note is the historic Tarrytown Music Hall, a 136 year-old historic theater. Supposedly haunted, and yes, they DO have ghost tours. And yes, I’m definitely kicking myself for not thinking of buying tickets in advance of my trip!

The sun was starting to set as we headed back to New Jersey with haunted places still on our minds. This Halloween, when I revisit Irving’s tale, I’ll actually be able to say that I’ve walked through the cemetery, stood next to the church, and crossed the bridge! How awesome is that?