With certain personal items, it’s quite obvious when it’s appropriate to swap them out and wash them. Socks? Every day, of course! Bed sheets? Weekly, you spend like 60 hours total in them, for Pete’s sake. Bath towel? Well, considering you’re squeaky clean (in theory) when you dry yourself off post-shower, you’re… probably good for a while, right?
Wrong, says NYU School of Medicine microbiologist Philip Tierno. As clean as you think your shower gets you, your bath towel is covered in bodily secretions, fungal spores, bits of dead skin — plus any other free floating oogies that are present in your bathroom. (Six-foot toilet plume, anyone?) Also, your towel is damp and warm: perfect conditions for trouble.
“Your cellular debris and other deposits from the air serve as food for the microbes, and the moisture supplies water at a neutral pH. […]
[If] you share your towel with others, you could potentially come into contact with organisms that your body isn’t used to dealing with – such as Staphylococcus aureus, Tierno said, ‘which may give rise to a boil, or a pimple, or an infection.’”
According to expert Tierno, the maximum number of times you should use your bath towel before washing it is three — and that’s only if you manage to completely dry it out between uses… Yeugh.
This fascinating tale makes me glad we live in a time when we can know what’s crawling around on us and on our bath towels, for the sake of both interest and cleanliness! Now, if you’ll excuse me, I’m off to throw everything I own into the washing machine. See you next week!
Back in November, muon tomography of the Great Pyramid at Giza revealed a previously undiscovered large void, deep within the last standing Wonder of the Ancient World. Naturally scientists are super enthused about exploring this new mystery — but how to do so in a way that won’t break through doors or walls, compromising the state in which the mystery was left? Besides the loss of scientific clues due to damage, explorers could also cause a collapse of part of the structure, or might bring down an ancient curse. (Kidding about that last one!)
To get around these challenges, French research institutes Inria and CNRS are working on a brand new kind of remote robot, an autonomous blimp. They hope the robot will open up the Great Pyramid void to science, while leaving it as sealed as possible in practical terms.
The deployment procedure would involve drilling an approximately 3.5cm hole into the outer wall of the chamber, and sliding the cylindrical robot inside, nestled into its rod-like dock. Once in the chamber, the robot would unfold and inflate its 80cm helium envelope and take off into the void. Equipped with 50g worth of sensors, lights, and motors, the blimp would investigate the secrets of the space, before returning to the dock, folding back up, and being withdrawn through the hole. (Check out the design video here)
The robot is designed but not yet prototyped — one of the puzzles the creators are still working through is how exactly the robot will fold up its deflated envelope again. But the rest of the concept is well hashed out, and represents a great improvement over other, traditional methods of exploration:
“[T]here are quite a few good reasons why it would be better than other types of ground robots with wheels, tracks, or legs, or drones with rotors. A blimp doesn’t have to worry about stairs, rocks, ramps (or traps). You get a much better perspective from a blimp, and you can also cover more area more quickly. Blimps can also harmlessly bounce off of obstacles and are less likely to crash than a conventional rotorcraft, and you have to figure that a blimp crash (if it does occur) would be much more pillowy in nature.”
I cannot wait to see how cutting edge tech unveils more of the mysteries of the human past, in a way that is as respectful as possible of the mystery itself! I’m sure chances of finding something as immediately gratifying as, say, treasure, are not high. But there is huge value in any information the blimp might uncover — and besides, if there’s no treasure, there’s no Boris Karloff look-alike to hassle you over it!
On this New Year’s Day, I’m excited to tackle the challenges the future will bring! But this exhilaration is tempered a bit by the realization that the holiday-mandated relaxation period will soon be over. During these holidays, I’ve been unwinding by watching nature documentaries — particularly BBC selections narrated by the incomparable Sir David Attenborough.
I’m fascinated most by episodes about the oceans, and I particularly love hearing about my favourite sea creatures, jellyfish! We solid bipeds might only think of them as either goopy blobs on beaches, or venomous menaces that ruin your swim first by causing stinging pain, then by obliging someone to urinate on you. (The efficacy of that strategy is a myth, by the way!) The Conversation has a breakdown of some of the coolest jellyfish facts that you can bust out around the water cooler when you return to work — including, my personal fave, the fact that some species of jellyfish are effectively immortal.
“Many jellies have evolved unique abilities, some of which seem almost supernatural. […] The pièce de résistance is surely their second chance at youth. When conditions are unfavourable, certain species including compass, barrel, and moon jellyfish can reverse their development and effectively turn back into jelly-children in order to wait out the hard times.”
This youth-cycling happens on a cellular level, and is actually right up there with stem cells as a possible solution to the human aging process. Hopefully, this remains a fun fact for you, rather than a fervently wished for dream resulting from overindulgence last night! Happy New Year, and here’s to a 2018 filled with natural marvels and technological breakthroughs.