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Science

Can you grow vegetables in a cardboard box?

In the era of supermarkets and wholesale clubs, growing your own food isn't a necessity for most Americans. But that doesn't mean it's not a good idea to try.

A household garden can be a great way to reduce your grocery bill and increase your intake of nutrient-dense foods. It can also be a good source of exercise and a hobby that gets you outside in the sunshine and fresh air more often. However, not everyone has a yard where they can grow a garden or much outdoor space at all where they live. You can plant things in containers, but that requires some upfront investment in planters.

container garden, growing plants in containers, growing vegetables, homegrown, producePotted plants and herbs can thrive in a container garden.Photo credit: Canva

Or does it? Gardener James Prigioni set out to see if an Amazon shipping box would hold up as a planter for potatoes. He took a basic single-walled Amazon box, lined it with dried leaves to help with moisture retention, added four to five inches of soil (his own homegrown soil he makes), added three dark red seed potatoes, covered them with more soil, added a fertilizer, then watered them.

He also planted a second, smaller Amazon box with two white seed potatoes, following the same steps.

Two weeks later, he had potato plants growing out of the soil. Ten days after that, the boxes were filled with lush plants.

- YouTubewww.youtube.com

Prigioni explained how to "hill" potato plants when they grow tall enough, which helps encourage more tuber growth and protect the growing potatoes from sunlight. Hilling also helps support the plants as they grow taller so they don't flop over. He also added some mulch to help keep the plants cooler as the summer grew hotter.

After hilling, Prigioni only needed to keep up with watering. Both varieties of potatoes flowered, which let him know the tubers were forming. The red potato leaves developed some pest issues, but not bad enough to need intervention, while the white potato plants were unaffected. "It goes to show how variety selection can make a big difference in the garden," he explained.

The visible plants have to start dying before you harvest potatoes, and Prigioni checked in with the boxes themselves when they got to that point.

vegetable garden, growing potatoes, grow potatoes in a cardboard box, Amazon box, farmingFreshly harvested potatoes are so satisfying.Photo credit: Canva

"I am pleasantly surprised with how well the boxes held up," he said, especially for being single-walled boxes. The smaller box was completely intact, while the larger box had begun to split in one corner but not enough to affect the plants' growth. "This thing was completely free to grow in, so you can't beat that," he pointed out.

Prigioni predicted that the red potatoes grown in the larger box would be more productive. As he cut open the box and pulled potatoes from the larger box, they just kept coming, ultimately yielding several dozen potatoes of various sizes. The smaller box did have a smaller yield, but still impressive just from two potatoes planted in an Amazon box.

People often think they don't have room to grow their own food, which is why Prigioni put these potato boxes on his patio. "A lot of people have an area like this," he said.

"I will never look at cardboard boxes the same," Prigioni added. "There are so many uses for them in the garden and it's just a great free resource we have around, especially if you're ordering stuff from Amazon all the time."

cardboard box, container garden, amazon box, growing vegetables, gardeningDo you see a box or do you see a planter?Photo credit: Canva

People loved watching Prigioni's experiment and shared their own joy—and success—in growing potatoes in a similar fashion:

"I have been growing potatoes in every box I can find for several years now. I have had excellent success. I honestly think potatoes prefer cardboard. And yes, most of my boxes were from Amazon."

"I live in an upstairs apartment with a little deck and I have a container garden with containers on every single stair leading to the deck. I grow potatoes in a laundry basket. It's amazing how much food I can get from this type of garden!! Grateful."

"I literally got up and grabbed the empty boxes by our front door, the potatoes that have started to sprout, and soil i had inside and started my planting at 1am. Lol. I will take them outside today and finish. Thank you James!"

"I grew potatoes and tomatoes on my tiny balcony in Germany (in buckets and cardboard boxes). Now I have a big garden here in America. I so love to grow my own food."

"I grew sweet potatoes in cardboard boxes. It’s so much fun."

Next time you're stuck with an Amazon box that you don't have a use for, consider whether you could use it as a planter for potatoes or some other edible harvest. Gardening doesn't have to be fancy to be effective.

You can find more of gardening experiments on The Gardening Channel with James Prigioni.

Science

Innovative farm in Virginia can grow 4 million pounds of strawberries on less than one acre

This method uses 97 percent less land and up to 90 percent less water than conventional farming.

A new way to grow strawberries with less land, less water, and more berries.

Strawberry farm harvests aren't something most of us calculate on a regular basis (or ever at all), but the numbers from a strawberry farm in Richmond, Virginia, are staggering enough to make it worth an old-school word problem. If the average American eats 8 pounds of strawberries a year, and an average strawberry farm yields approximately 20,000 pounds of berries per acre, how many people could a 200-acre strawberry field feed?

I won't make you do the math. The answer is 500,000 people. But what if a crop that size, providing enough strawberries for half a million people, could be grown on just one acre instead of 200? It's possible. You just have to go—or rather grow—up, up, up.

Indoor vertical farm company Plenty Unlimited knows a lot about growing up. In fact, it's their entire business model. Instead of the sprawling fields that traditional farming methods require, vertical farms have a much smaller land footprint, utilizing proprietary towers for growing. Plenty has used vertical farming methods to grow greens such as lettuce, kale, spinach and more for years, but now it boasts a vertical berry farm that can yield a whopping 4 million pounds of strawberries on a little less than an acre.

Growing indoors means not being at the mercy of weather or climate inpredictability (barring a storm taking out your building), which is wise in the era of climate change. Unlike a traditional greenhouse which still uses the sun for light, Plenty's indoor vertical farms make use of the latest technology and research on light, pinpointing the wavelengths plants need from the sun to thrive and recreating them with LED lights. Plenty farms also don't use soil, as what plants really need is water and nutrients, which can be provided without soil (and with a lot less water than soil requires). Being able to carefully control water and nutrients means you can more easily control the size, taste and uniformity of the berries you’re growing.

If that sounds like a lot of control, it is. And that idea might freak people out. But when a highly controlled environment means not having to use pesticides and using up to 90% less water than traditional farming, it starts to sound like a solid, sustainable farming innovation.

Plenty even uses AI in its strawberry farm, according to its website:

“Every element of the Plenty Richmond Farm–including temperature, light and humidity–is precisely controlled through proprietary software to create the perfect environment for the strawberry plants to thrive. The farm uses AI to analyze more than 10 million data points each day across its 12 grow rooms, adapting each grow room’s environment to the evolving needs of the plants – creating the perfect environment for Driscoll’s proprietary plants to thrive and optimizing the strawberries’ flavor, texture and size.”

Plenty even has its own patent-pending method of pollinating the strawberry flowers that doesn’t require bees. Even just the fact that this enormous crop of strawberries will be coming from Virginia is notable, since the vast majority of strawberries in the U.S. are grown in California.

strawberry fieldTraditional strawberry farming takes up a lot of land.Photo credit: Canva

Plenty's Richmond farm is currently growing strawberries exclusively for Driscoll’s.

“Partnering with Plenty for the launch of the Richmond Farm allows us to bring our premium strawberries closer to consumers in the Northeast, the largest berry consumption region in the U.S.,” Driscoll’s CEO Soren Bjorn said in a press release. “By combining our 100 years of farming expertise and proprietary varieties along with Plenty’s cutting-edge technology, we can deliver the same consistent flavor and quality our customers love — now grown locally. This new innovative farm is a powerful step forward in continuing to drive category growth in new ways for our customers and consumers.”

Is Plenty’s model the farm of the future? Perhaps it’s one option, at least. The more we grapple with the impact of climate change and outdated, unsustainable farming practices, the more innovative ideas we’ll need to feed the masses. If they can get 4 million pounds of strawberries out of an acre of land, what else is possible?

This article originally appeared in February

Pency Lucero watches the Northern Lights.

Seeing the northern lights is a common bucket list adventure for many people. After all, it ticks a lot of boxes—being a dazzling light show, a rich historical experience, and a scientific phenomenon all rolled into one. Plus there’s the uncertainty of it all, never quite knowing if you’ll witness a vivid streak of otherworldly colors dance across the sky…or simply see an oddly colored cloud. It’s nature’s slot machine, if you will.

Traveler and content creator Pency Lucero was willing to take that gamble. After thorough research, she stumbled upon an Airbnb in Rörbäck, Sweden, with an actual picture of the northern lights shining above the cabin in the listing. With that kind of photo evidence, she felt good about her odds.

airbnb, sweden, sweden northern lights, night sky sweden, green lightsThe Northern Lights in Sweden.via Airbnb

However, as soon as she landed, snow began falling so hard that the entire sky was “barely visible,” she told Upworthy. Martin, the Airbnb host, was nonetheless determined to do everything he could to ensure his guests got to see the spectacle, even offering to wake Lucero up in the middle of the night if he saw anything.

Then one night, the knock came.

In a video Lucero posted to TikTok, which now has over 12 million views, we hear Martin ushering her out to take a peek. Then we see Lucero’s face light up just before seeing the sky do the same.

“I thought it was a prank,” the onscreen text reads in the clip. “And then I see it….”

Watch:

@misspencyl

I’m on the verge of crying every time I watch this video I still cannot believe it. 📍 Rörbäck, Sweden


“I was mostly in awe of what this Earth is capable of,” Lucero recalled. “I never expected it to be THAT beautiful for the naked eye.” This is a hopeful sentiment against the widely accepted notion that the northern lights are often better looking in photos than they are in real life.

As Lucero asserted in a follow-up video, “Our video doesn’t do it justice at all…I would argue it’s even better for the naked eye.”

@misspencyl

Replying to @PatriotFamilyHomes I would argue its even better for the naked eye. Our video doesn’t do it justice at all. To be fair our Airbnb host said the one we saw doesn’t happen very often so I guess we were just very very lucky 🥹

Others were quick to back Lucero with anecdotes of their own experience. “It’s definitely possible to see it like in the pics. I saw it this winter in Norway, there was bright green, purple and so much movement.”

“They’re so much better in person, the way they dance and move around is insane and beautiful.”

iuceland night sky, iceland, nortern light iceland, aurora, night light, iceland beachThe Northern Lights in Iceland.via Nicolas J. Leclercq/Unsplash

Of course, if you ask Martin, who everyone agreed was the best host ever, seeing guest reactions of pure wonder and joy is even “better than the lights themselves.” But still, he can’t deny that there’s a breathtaking magic to it all. He shared with Upworthy that “Sometimes it feels like it will pull you up in the sky like you are in the middle of it. I wish everyone would have the chance to witness it.”

norway, northern lights, nature, beautiful night sky, lights in sky, snow, Amazing light display from Mother Nature.via Lightscape/Unsplash

When it comes to tips for actually seeing the northern lights, Martin admits it still mostly comes down to being in the right place at the right time. Luckily, his Airbnb listing can help with that.

What causes the northern lights?

The Northern Lights, scientifically known as Aurora Borealis, occur when charged particles from the sun collide with the atmosphere near the poles. The charged particles interact with gases such as nitrogen and oxygen to produce credible, colorful light displays that float magnificently above the night sky. The Northern Lights are most visible in high-latitude regions such as Sweden, Finland, Norway, Iceland, Alaska, and Canada.

Nature has a great way of reminding us that beyond the distractions and distresses of modern life, there is sublime beauty waiting for the chance to capture our hearts.

This article originally appeared two years ago.

John Mainstone was the custodian of the Pitch Drop Experiment for 52 years.

Because we use water all the time, most of us have an intuitive sense of how long it takes a drop of water to form and fall. More viscous liquids, like oil or shampoo or honey, drop more slowly depending on how thick they are, which can vary depending on concentration, temperature and more. If you've ever tried pouring molasses, you know why it's used as a metaphor for something moving very slowly, but we can easily see a drop of any of those liquids form and fall in a matter of seconds.

But what about the most viscous substance in the world? How long does it take to form a falling drop? A few minutes? An hour? A day?

How about somewhere between 7 and 13 years?

pitch drop experiment, tar pitch, solid or liquid, physics, world's longest experimentPitch moves so slowly it can't be seen to be moving with the naked eye until it prepares to drop. Battery for size reference.John Mainstone/University of Queensland

The Pitch Drop Experiment began in 1927 with a scientist who had a hunch. Thomas Parnell, a physicist at the University of Queensland in Australia, believed that tar pitch, which appears to be a solid and shatters like glass when hit with a hammer at room temperature, is actually a liquid. So he set up an experiment that would become the longest-running—and the world's slowest—experiment on Earth to test his hypothesis.

Parnell poured molten pitch it into a funnel shaped container, then let it settle and cool for three years. That was just to get the experiment set up so it could begin. Then he opened a hole at the bottom of the funnel to see how long it would take for the pitch to ooze through it, form a droplet, and drop from its source.

It took eight years for the first drop to fall. Nine years for the second. Those were the only two drops Parnell was alive for before he passed away in 1948.

- YouTubewww.youtube.com

In total, there have been nine pitch drops in the University of Queensland experiment. The first seven drops fell between 7 and 9 years apart, but when air conditioning was added to the building after the seventh drop, the amount of time between drops increased significantly. The drops in 2000 and 2014 happened approximately 13 years after the preceding one. (The funnel is set up as a demonstration with no special environmental controls, so the seasons and conditions of the building can easily affect the flow of the pitch.)

The next drop is anticipated to fall sometime in the 2020s.

pitch drop experiment, tar pitch, solid or liquid, physics, world's longest experimentThe first seven drops fell around 8 years apart. Then the building got air conditioning and the intervals changed to around 13 years.RicHard-59

Though Parnell proved his hypothesis well before the first drop even fell, the experiment continued to help scientists study and measure the viscosity of tar pitch. The thickest liquid substance in the world, pitch is estimated to be 2 million times more viscous than honey and 20 billion times the viscosity of water. No wonder it takes so ridiculously long to drop.

One of the most interesting parts of the Pitch Drop Experiment is that in the no one has ever actually witnessed one of the drops falling at the Queensland site. The drops, ironically, happen rather quickly when they do finally happen, and every time there was some odd circumstance that kept anyone from seeing them take place.

The Queensland pitch drop funnel is no longer the only one in existence, however. In 2013, Trinity College in Dublin, Ireland, managed to capture its own pitch drop on camera. You can see how it looks as if nothing is happening right up until the final seconds when it falls.

- YouTubewww.youtube.com

Today, however, with the internet and modern technology, it's likely that many people will be able to witness the next drop when it happens. The University of Queensland has set up a livestream of the Pitch Drop Experiment, which you can access here, though watching the pitch move more slowly than the naked eye can detect is about as exciting as watching paint dry.

But one day, within a matter of seconds, it will drop, hopefully with some amount of predictability as to the approximate day at least. How many people are going to be watching a livestream for years, waiting for it to happen?

PoorJohn Mainstone was the custodian of the experiment for 52 years, from 1961 to 2013. Sadly, he never got to witness any of the five drops that took place during his tenure. Neither did Parnell himself with the two that took place while he was alive.

John Mainstone, pitch drop experiment, university of queensland, physicsJohn Mainstone, the second custodian of the Pitch Drop Experiment, with the funnel in 1990.John Mainstone, University of Queensland

Sometimes science is looks like an explosive chemical reaction and sometimes it's a long game of waiting and observing at the speed of nature. And when it comes to pitch dripping through a funnel, the speed of nature is about as slow as it gets.