Curious Cat Science and Engineering Blog

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Great posts about cats: Engineering a Camera for Your Cat - Origins of the Domestic Cat - Jaguars Back in the Southwest USA

April 5, 2008

False Teeth For Cats

False Teeth For Cats! What Next?

A team of eight British college students, calling themselves Fangs A Lot, have created the first false tooth for a cat and set up a business, Animal Solutions, to market false teeth for cats, dogs, and other animals. The group and its prototype false cat tooth have made it to the finals of the Ideas Igloo Roadshow, an invention contest for college students sponsored by Britain’s Make Your Mark Campaign and Microsoft, UK.

False teeth for cats may sound ridiculous, but they could be a solution to a serious problem for cats. Cats have notoriously bad dental problems. Cat owners seldom brush their cats’ teeth or scrape the surfaces of the teeth to remove plaque. By the time a cat is 3 or 4 years old, she may already have periodontal disease that can lead to tooth loss. Tooth loss may also come about as a result of tooth breakage, particularly in the canine teeth.

Link provided via our post suggestion page.

by curiouscat Tags: Awards, Cats, Engineering, K-12, Products, Students
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March 18, 2008

Photos by Fritz the Cat

Fritz the cat - photographer

fritz-cam by Fritz the cat:

My name is Fritz [photo of me on the left] and I live at 23 Cat Street [in Germany]. My mistress is an artist, and now it’s my turn to show what I can do. Since September 2007 we’ve owned a Mr-Lee-Catcam
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Third time lucky. I went for a long walk with the camera. Perhaps a bit too long, because she was looking for me everywhere. Anyway, she was very pleased when I came home with the camera and a mouse. I’d taken over 200 photos while I was out. Unfortunately the battery gave up the ghost before the final capture … of the mouse, I mean.

See many more great photos by fritz at fritz-cam.

by curiouscat Tags: Cats, Students
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February 22, 2008

Cats Prevent Heart Attacks

I suppose some people don’t know how great cats are Here is news of a study showing that those with cats are less likely to have heart attacks.

Whether it’s a frisky kitten or a tubby tabby, a cat at home could cut your heart attack risk by almost a third, a new study suggests.
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In the new study, Qureshi’s team analyzed data on 4,435 Americans, aged 30 to 75, who took part in the federal government’s second National Health and Nutrition Examination Study, which ran from 1976-1980. According to the data in the survey, 2,435 of the participants either owned a cat or had owned a cat in the past, while the remaining 2,000 had never done so.

Qureshi’s team then tracked rates of death from all causes, including heart and stroke. Cat owners “appeared to have a lower rate of dying from heart attacks” over 10 years of follow-up compared to feline-free folk, Qureshi said. The magnitude of the effect — a 30 percent reduction in heart attack risk — “was a little bit surprising,” he added. “We certainly expected an effect, because we thought that there was a biologically plausible mechanism at work. But the magnitude of the effect was hard to predict.”

This is just one more example of cat power. As we have shown before: cats can be photographers and also protect you from bears.

Have a nice weekend.

by curiouscat Tags: Cats, Health Care, Students
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February 20, 2008

Leaping Tigress

The pregnant tigress, in the photo, had wandered off the Sunderbans Tiger Reserve to a village, Deulbari, about 150 miles south of Calcutta. She was tranquillized and relocated deep inside a mangrove reserve (it is unclear if this is a different reserve than she came from based on the report, to me anyway). She is leaping off the fishing vessel used to transport her to the reserve.

Tigress’s spectacular leap to freedom

Tigers have been slowly disappearing from forests and reserves in India due to poaching, growing tourism, and a shortage of properly trained forest guards. The tiger population has dropped from nearly 3,600 five years ago to about 1,411, the government-run Project Tiger said recently.

by curiouscat Tags: Cats, Students
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February 2, 2008

Genetic Research Suggests Cats ‘Domesticated Themselves’

Why Do Cats Hang Around Us? (Hint: They Can’t Open Cans), Washington Post

The findings, drawn from an analysis of nearly 1,000 cats around the world, suggest that the ancestors of today’s tabbies, Persians and Siamese wandered into Near Eastern settlements at the dawn of agriculture. They were looking for food, not friendship.

They found what they were seeking in the form of rodents feeding on stored grain. They stayed for 12 millennia, although not without wandering off now and again to consort with their wild cousins. The story is quite different from that of other domesticated animals: cattle, sheep, goats, horses

by curiouscat Tags: Cats, Life Science, Students
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January 31, 2008

Jumping Savannah Cat

The Savannah cat breed is from the mating of a male African serval cat to a female domestic cat. The serval grows to from 9 to 20 kg (20-44 lbs) and lives 12-20 years in the wild. It is closely related to the African Golden Cat and the Caracal. The cats in the webcast are Savannahs.

by curiouscat Tags: Cats, Life Science, Podcast
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November 13, 2007

The Wonderful Life of a Cat

Cat’s daily routine baffles owner

Sgt Podge, a Norwegian Forest Cat, disappears from his owner’s home in Talbot Woods, Bournemouth, every night. The next morning, the 12-year-old cat can always be found in exactly the same place, on a pavement about one and a half miles (2.4km) away. His owner, Liz Bullard, takes her son to school before collecting Sgt Podge.
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It is thought Sgt Podge walks across Meyrick Park Golf Course every night to reach his destination
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Ms Bullard also makes the trip at weekends and during school holidays - when her son is having a lie in. She does not know why, after 12 years, Sgt Podge has begun the routine but explained that another woman who lived nearby used to feed him sardines, and that he may be on the look-out for more treats.
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Back at home, Sgt Podge has breakfast before going to sleep by a warm radiator.

by curiouscat Tags: Cats
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November 6, 2007

Cat Joins Exclusive Genome Club

Cat joins exclusive genome club

The domestic cat now joins the select club of mammals whose genome has been deciphered - including dogs, chimps, rats, mice, cows and people. The genome map is expected to shed light on both feline and human disease. Cats get hundreds of illnesses similar to human ones, including a feline version of HIV, known as FIV, and a hereditary form of blindness.
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Cats are among the 26 mammals chosen by the National Human Genome Research Institute in the US for less complete or “light” genome sequencing. Scientists use the so-called “shot-gun” sequencing method, where DNA is extracted, chopped into pieces, sequenced, and then pieced back together again.

It has yielded a rough version of the cat genome, including around 60% of Cinnamon’s DNA “letters” with many gaps in between. A more complete version, expected next year, will be used to make more detailed comparisons with other animals.

by curiouscat Tags: Cats, Life Science, Students
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September 30, 2007

Rare Chinese Mountain Cat

rare photo of Chinese mountain cat in the wild.jpg

Rare Chinese Cat Captured on Film

Triggered by body heat, a remote camera recently captured this image of the elusive Chinese mountain cat at about 12,300 feet (3,750 meters) on the edge of the Tibetan Plateau in China’s Sichuan Province. A total of eight images of the feline represent the first time the mountain cat has been photographed in the wild, said Jim Sanderson, a cat specialist with the Wildlife Conservation Network who led the team that snapped the rare shots. A paper about the cat will appear in an upcoming issue of the journal Science.
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“There’s no interest in its conservation because it’s poorly known, but now perhaps this will change.”

I am biased by my love of cats but I hope this helps conservation efforts.

by curiouscat Tags: Cats, Life Science, Students
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September 14, 2007

The Engineer That Made Your Cat a Photographer

photo by Binky the cat or another cat This article is the result of the first Curious Cat engineer interview. My favorite post detailed the great engineering project Jürgen Perthold undertook to engineer a camera that his cat could wear and take photos. So I decided to interview him.

The Engineer That Made Your Cat a Photographer by John Hunter:

This time I thought about our cat who is the whole day out, returning sometimes hungry sometimes not, sometimes with traces of fights, sometimes he stay also the night out. When he finally returns, I wonder where he was and what he did during his day. This brought me to the idea to equip the cat with a camera. The plan was to put a little camera around his neck which takes every few minutes a picture. After he is returning, the camera would show his day.

The Amazing CatCam is not only a great product but a wonderful engineering story. See our past post for some background on how an engineer allowed you to help your cat become a photographer. On the development of the CatCam Jürgen Perthold says, “More or less it was just a joke, born with a crazy idea.” Such a great sentiment and with wonderful results.

What path led him to the desire and ability to pursue the crazy idea and become the Curious Cat engineer of the year? He was born in Aalen, Germany. He started playing with electronics as he was 13. At 15 he added computer programming and with a friend they programmed games, applications and hardware control over the years. He studied Optoelectronics at the University of Aalen, Germany extending his knowledge further.

For the last few years he has worked for Bosch, an international manufacturing company, in the automotive hardware section. Last summer, he transfered from Germany to Anderson, South Carolina as a resident engineer for transmission control unit in a production plant for automobile parts. On a side note, the United States is still by far the largest manufacturer in the world.
photo by Binkey the cat, from under a car
The demand for the cameras is still higher than his capability to produce the cameras. He has raised the price, to limit the demand. When I first saw the prices I couldn’t believe how inexpensive it was. And, in my opinion, they are still a incredible deal. Order your CatCam now: it is a great gadget for yourself or it makes a great unique, gift. Most orders have been from the UK, Germany and the USA.

Most people don’t have technical background so they buy the full unit. But he reports that some brave souls order a kit because of price or availability although they have not done anything similar before. What a great way to challenge yourself and, if you succeed, end up with a wonderful creation when you finish.

He is in discussion with several different groups to ramp up production. The main problem is that producing the device requires electronics, optics, software, mechanics and logistics expertise. So, for the time being, he continues to modify the cameras by hand because no investments are necessary and the production can be scaled according to the demand. The required soldering, electronics and system knowledge makes it a challenge to outsource. So, for now, CatCam production is adding to the USA manufacturing output total. He is also planning to produce more products.
photo of Jacquie the cat wearing a CatCam
Jürgen believes that getting the cat camera working was not that challenging. You can take a look at his explanation of how he did so to decide for yourself. He does admit that challenges do arise if you want to produce cameras for others. To do that you must create a product that is foolproof, reliable, and easy to use and manufacture.

“I was surprised how famous one can get with ‘boring’ technical engineering stuff. I like this not only for me but for all other engineers out there who daily work hard on challenges which others don’t even understand. We as engineers make the world moving but usually we are not recognized.” Everyone enjoys the products of the labors of engineers (such as cell phones, MP3 players, cars, planes, bridges, internet connections) but few see the required knowledge, work and the people that bring those products into being.
photo by Jacquie the cat of a vine
Jürgen “hopes that I made ‘engineering’ a bit more visible to people who did not think about it before, for example, female cat owners who never had a solder iron in the hand and bought plain SOIC chips because they wanted the cat camera…”

I think he has done a great job illustrating the engineering behind the CatCam and making engineering fun. And in so doing hopefully is making more people aware of the engineers that make so many wonderful modern gadgets. Go buy a CatCam now (and if you are adventurous buy the parts and create your own - you will learn a lot about what makes all your modern gadgets work). And then send in the pictures your cat takes so everyone can see the wonderful things engineers make possible.

The photos here show the results of several new cat photographers (Binky the cat [first 2 photos] and Jacquie the cat [last 2]). Only a small percentage of CatCam owners have shared there pictures so far.

Over the next few years he would like to learn to sail, visit Yellowstone national park, walk the Camino de Santiago again, move on to other international assignment (maybe far east) and continuing raising his two children.

The Curious Cat Science and Engineering Blog is written by John Hunter and tracks a wide variety of developments, happenings, interesting under-publicized facts, and cool aspects of science and engineering.

by curiouscat Tags: Cats, Engineering, Popular, Products, Students, Technology, quote
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June 28, 2007

Origins of the Domestic Cat

DNA traces origin of domestic cat:

The study suggests the progenitors of today’s cats split from their wild counterparts more than 100,000 years ago - much earlier than once thought. At least five female ancestors from the region gave rise to all the domestic cats alive today, scientists believe. DNA evidence suggests that, apart from accidental cross-breeding, European wildcats are not part of the domestic moggy’s family tree. Neither are the Central Asian wildcat, the Southern African wildcat, or the Chinese desert cat.
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The earliest archaeological evidence of cat domestication dates back 9,500 years, when cats were thought to have lived alongside humans in settlement sites in Cyprus. However, the new results show the house cat lineage is far older. Ancestors of domestic cats are now thought to have broken away from their wild relatives and started living with humans as early as 130,000 years ago. The researchers focused on DNA in the mitochondria, the power plants of cells which supply energy and have their own genetic material.

by curiouscat Tags: Cats, Life Science
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June 3, 2007

Awesome Cat Cam

CatCam - photo of the famous cat photographer CatCam - cat photographer on the run CatCam - cat photographer get picture of another cat

CatCam by Juergen Perthold - this great project involved taking a digital camera and some additional equipment to create a camera that his cat wore around his neck which took pictures every 3 minutes. The pictures are great. The cat got photos of several other cats and seemed to like cars.

See more cool gadgets, See our other popular posts and our cat related posts.

Sometimes I have some challenging ideas, or crazy like some other people would say. This time I thought about our cat who is the whole day out, returning sometimes hungry sometimes not, sometimes with traces of fights, sometimes he stay also the night out. When he finally returns, I wonder where he was and what he did during his day. This brought me to the idea to equip the cat with a camera. The plan was to put a little camera around his neck which takes every few minutes a picture. After he is returning, the camera would show his day.
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The VistaQuest made it very easy for me, because it is able to supply my circuit also if switched off. This is because of an internal DC/DC converter which boosts the voltage from the 1.5V battery to 3.3V. The DC/DC converter is always working because of the internal SRAM which holds the pictures. I just had to hook the microcontroller to the internal camera supply.
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Well, I thought the hardest part is done by developing the software and soldering the controller board. But it is more the housing to protect the camera. You can not imagine what kind of requirements have to be fulfilled if you want to equip your cat with a camera. I built a small housing out of plastic plates and put it on the collar of the cat for evaluation purpose. This housing was last seen as the cat walked out of the door… Probably the wires I used for attaching were not strong enough. Or someone released the cat from the interesting looking piece.

For the second try I used the plastic package of a child toy (Kinderueberraschung), put a stone in it for loading it with some weight and attached it again to the cat collar. This time the part returned - dirty and scratched outside, water inside. What the hell is the cat doing !? This raised the requirements for the camera protective housing a lot
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Big moment no. 1: attach the collar with the camera to the cat. The reaction was not very happy but finally accepted. Reality check passed

This is my favorite home engineering project. The concept is great. The explanation of the technology is great. The adjustment to real life situations is great. The end result (the photos) is great. This wins the non-existent Curious Cat Cool Contraption award. If someone doesn’t start selling prefabricated cat cameras I will be very surprised (if I was more enterprising I would do it myself). Maybe J. Perthold will, in any event he should inspire many to try making their own.

by curiouscat Tags: Awards, Cats, Engineering, K-12, Popular, Products, Students, Technology, quote
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May 22, 2007

Water Buffaloes, Lions and Crocodiles Oh My

Pretty amazing video. A look at real wild life with lots of excitement, a bit violence and some surprising turns. On my trip to Kenya I saw an interaction between lions and one water buffalo but it was without much of this action. Basically there was a standoff for like half an hour with half charges and the like. Even that was very interesting.

by curiouscat Tags: Cats, Life Science, Podcast, Students
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April 10, 2007

And Now for Something Completely Different

Macavity the cat

Too cool. Mystery cat takes regular bus to the shops:

The cat was nicknamed Macavity after the mystery cat in T.S Elliot’s poem. He gets on the bus in front of a row of 1950s semi-detached houses and jumps off at a row of shops down the road which include a fish and chip shop.
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Driver Bill Khunkhun, 49, who first saw the cat jumping from the bus in January, said: “It is really odd, the first time I saw the cat jumping off the bus with a group of passengers. I hadn’t seen it get on which was a bit confusing. “The next day I pulled up on Churchill Road to let a couple of passengers on. As soon as I opened the doors the cat ran towards the bus, jumped on and ran under one of the seats, I don’t think any of the passengers noticed. “Because I had seen it jump off the day before I carried on driving and sure enough when I stopped just down the road he jumped off - I don’t know why he would catch the bus but he seems to like it. I told some of the other drivers on this route and they have seen him too.”

Here is T.S. Eliot’s poem:

Macavity’s a Mystery Cat: he’s called the Hidden Paw-
For he’s the master criminal who can defy the Law.
He’s the bafflement of Scotland Yard, the Flying Squad’s despair:
For when they reach the scene of crime-Macavity’s not there!

Macavity, Macavity, there’s no one like Macavity,
He’s broken every human law, he breaks the law of gravity.
His powers of levitation would make a fakir stare,
And when you reach the scene of crime-Macavity’s not there!
You may seek him in the basement, you may look up in the air-
But I tell you once and once again, Macavity’s not there!
(more…)

by curiouscat Tags: Cats, Students
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April 4, 2007

Cats Control Rats … With Parasites

What, then, could attract rats to cat pee? None other than toxoplasma gondii, a parasite carried by cats. If a rat is infected by t. gondii, cat urine doesn’t seem so bad anymore; it’s even kind of attractive. Even more impressively, Stanford University researchers have found that the rats otherwise behave normally, with all their usual fears intact. The response is so specific that cats and t. gondii seem almost like a single organism — which, in a sense, they are.

by curiouscat Tags: Cats, Engineering
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March 15, 2007

Bornean Clouded Leopard

Borneo’s clouded leopard identified as new cat species:

Scientists have discovered that the clouded leopard found on the islands of Borneo and Sumatra is an entirely new species of cat. The secretive rainforest animal was originally thought to be the same species as the one found in mainland South-east Asia. The news comes just a few weeks after a WWF report showed that scientists had identified at least 52 new species of animals and plants over the past year on Borneo.

Photo: WWF-Canon / Alain Compost