The Assassin's Water Bottle

less than 1m read

·Nov 10, 2024

This water bottle allows you to carry two different liquids and dispense them from the same nozzle separately or together at your command. It's a collaboration between myself and Steve Mold that you can pre-order now.

It all started when Steve and I were talking about the physics behind the Assassin's teapot, and I said something like, "Wouldn't it be amazing if there was a water bottle that worked in the same way?" Then he probably said something like, "You have such good ideas, Michael, and you're so handsome." I think that's exactly how the project began.

Over the next few months, we designed a portable version of the Assassin's teapot: a double barrel water bottle with no moving parts that uses just surface tension and air pressure. We even designed mathematical koozies that can hide the secret or be removed to reveal and teach.

We call it the Assassin's water bottle. We are only going to make a limited number of these, so pre-order today. The future of drinking starts now. The future of poisoning people stops now. Do not use this for that.

Things you should know about your credit card | Consumer credit | Financial Literacy | Khan Academy

Helping African Businesses Get Paid, Shola Akinlade of Paystack

View All

Biased and unbiased estimators from sampling distributions examples

Alejandro was curious if sample median was an unbiased estimator of population median. He placed ping-pong balls numbered from zero to 32 in a drum and mixed them well. Note that the median of the population is 16. He then took a random sample of five bal…

15 One time Purchases That Have the Best ROI

Did you know that 90% of luxury purchases depreciate the moment you walk out of that store? But what if we told you there are some exceptions where spending big today could actually mean earning big tomorrow? When it comes to living the high life, every s…

Climate Change is Boring

Climate change is boring. Don’t get me wrong. It is incredibly important. It is just that the story of climate change is not especially compelling. And that is when the carbon dioxide concentration reached 400 parts per million. When I started making thi…

BEHIND THE SCENES of a YouTube video

I spend a very long time in the first minute of the YouTube video because I feel like the first minute is really the most powerful. You can lose 90% of your audience in just the first minute, and you’re never gonna get them back to that video. So it’s so …

Celebrating Earth Month—and Jane Goodall’s 90th Birthday | ourHOME | National Geographic

Hey, everybody. Bertie Gregory here… Hey, everybody! From the Greek Theatre in Los Angeles. We’re here to celebrate Jane Goodall’s 90th birthday. Hey, Jane. How are you doing? I’m here with my friend Andy. Hello! And we’ve got a couple more friends out he…

Crystalline and amorphous polymers | AP Chemistry | Khan Academy

Let’s talk a little bit about crystalline and amorphous polymers. Now, in previous videos we talked about crystalline versus amorphous solids. Crystalline solids have a very regular pattern; maybe they look something like this if you imagine the particle…

The Assassin's Water Bottle

More Articles