Bicycles and the mechanics of movement

Bicycles are human-powered vehicles whose familiar form combines a frame, wheels, steering, and a system for transmitting effort. Their designs vary according to use, from everyday transport to recreation and specialised competition. Although many examples share a recognisable outline, differences in dimensions, materials, and components can affect how they are used. A bicycle is a collection of interacting mechanisms rather than one simple object performing a single motion.

The frame supports the rider and holds the main components in relation to one another. Wheels allow the vehicle to move over the ground, while steering helps control its direction. The contact between tyres and the surface is important to the behaviour of the whole system. Changes in load, road texture, and speed influence the forces involved, so the same bicycle can feel different in different surroundings.

In a common arrangement, pedalling turns a chain-driven mechanism that transfers effort to a wheel. Gearing changes the relationship between the movement of the pedals and the movement of the wheel. Different gear arrangements allow the rider to use effort in different ways as conditions change. This mechanical relationship does not produce energy on its own; it changes how the energy supplied by the rider is transmitted.

Braking systems reduce motion by creating controlled resistance. Different designs apply that resistance at different parts of the wheel assembly. Bearings, cables, joints, and other small components also contribute to the bicycle’s operation. Their individual movements may be less noticeable than the turning wheels, but the behaviour of the complete vehicle depends on the condition and interaction of these smaller parts.

Bicycles also have a place in the wider design of roads, paths, storage spaces, and everyday routines. The routes available in a town influence how convenient a journey can be, while the purpose of a trip affects the kind of bicycle and equipment chosen. Observing bicycles from both mechanical and social viewpoints shows how a relatively compact machine connects personal effort with the layout and activity of the surrounding landscape.

Pottery from shaped clay to finished vessel

Pottery is made by shaping suitable clay and hardening it through firing. The finished objects can serve everyday purposes or be created mainly for decoration and expression. Bowls, jars, tiles, and many other forms show the range of possibilities. Their appearance results from a sequence of choices involving the material, the method of shaping, the treatment of the surface, and the conditions of the firing.

Clay becomes workable when mixed with an appropriate amount of water. It can be pressed, joined, rolled, or formed on a wheel. Different methods leave different traces in the finished shape. A vessel built from coils may develop differently from one shaped by turning on a wheel. The consistency of the material and the way it is supported influence which forms can be made and how they retain their shape.

Drying is an important stage before firing. Water leaves the shaped object, and the material can shrink as it dries. Differences in thickness or the way parts are joined can affect this process. Once the object is sufficiently dry, firing produces changes that make it harder and less able to return to its earlier workable condition. The result depends on the clay and the firing conditions rather than on heat alone as a simple uniform treatment.

Surface treatments add another range of possibilities. Texture can be created while the clay is soft, and coloured materials or glazes can change the final appearance. A glaze forms a coating whose behaviour depends on its composition and the firing process. Colour, shine, and texture therefore reflect interactions between materials and temperature, not merely a layer applied to an otherwise completed object.

Looking closely at pottery can reveal marks of making as well as the intended design. The edge, base, wall thickness, and surface may suggest how the object was formed and used. Comparisons between pieces show both repeated methods and individual variation. Pottery connects a familiar material from the ground with skilled movement, controlled change, and the long human practice of making durable objects for use and expression.

Whales: Giants of the Ocean

Whales: Giants of the Ocean

Whales are among the largest and most remarkable animals on Earth. These marine mammals live in oceans around the world, from warm tropical waters to the cold seas surrounding the poles.

Life Beneath the Surface

Although whales spend their lives in water, they breathe air through blowholes located on top of their heads. They must regularly return to the surface to breathe before diving again in search of food or traveling through the ocean.

Whales are warm-blooded, give birth to live young, and nurse their calves with milk. A thick layer of fat called blubber helps protect them from cold water and stores energy during long migrations.

Two Main Groups

Whales are generally divided into baleen whales and toothed whales. Baleen whales filter small animals from the water using flexible plates inside their mouths. This group includes blue whales, humpback whales, and gray whales.

Toothed whales use teeth to catch fish, squid, and other prey. Many of them also use echolocation, producing sounds and listening for returning echoes to understand their surroundings. Sperm whales, belugas, and orcas belong to this group.

The Blue Whale

The blue whale is the largest known animal to have ever lived. An adult can grow longer than a city bus and weigh well over one hundred tonnes. Despite its enormous size, it feeds mainly on tiny crustaceans called krill.

Communication and Migration

Whales communicate using clicks, whistles, pulses, and complex songs. Some sounds can travel across great distances underwater. Humpback whales are especially famous for their long, patterned songs.

Many species migrate thousands of kilometres each year. They often feed in cold, nutrient-rich waters before traveling to warmer regions where they mate and give birth.

Protecting Whales

Commercial hunting once caused severe declines in many whale populations. Today, whales also face threats from fishing gear, ship collisions, underwater noise, pollution, and changes to ocean ecosystems.

Conservation programs, safer fishing practices, protected habitats, and international cooperation can help whale populations recover. Protecting whales also supports healthier oceans because these animals play an important role in marine food webs and nutrient cycles.

Whales: Giants of the Ocean

Whales: Giants of the Ocean

Whales are among the largest and most remarkable animals on Earth. These marine mammals live in oceans around the world, from warm tropical waters to the cold seas surrounding the poles.

Life Beneath the Surface

Although whales spend their lives in water, they breathe air through blowholes located on top of their heads. They must regularly return to the surface to breathe before diving again in search of food or traveling through the ocean.

Whales are warm-blooded, give birth to live young, and nurse their calves with milk. A thick layer of fat called blubber helps protect them from cold water and stores energy during long migrations.

Two Main Groups

Whales are generally divided into baleen whales and toothed whales. Baleen whales filter small animals from the water using flexible plates inside their mouths. This group includes blue whales, humpback whales, and gray whales.

Toothed whales use teeth to catch fish, squid, and other prey. Many of them also use echolocation, producing sounds and listening for returning echoes to understand their surroundings. Sperm whales, belugas, and orcas belong to this group.

The Blue Whale

The blue whale is the largest known animal to have ever lived. An adult can grow longer than a city bus and weigh well over one hundred tonnes. Despite its enormous size, it feeds mainly on tiny crustaceans called krill.

Communication and Migration

Whales communicate using clicks, whistles, pulses, and complex songs. Some sounds can travel across great distances underwater. Humpback whales are especially famous for their long, patterned songs.

Many species migrate thousands of kilometres each year. They often feed in cold, nutrient-rich waters before traveling to warmer regions where they mate and give birth.

Protecting Whales

Commercial hunting once caused severe declines in many whale populations. Today, whales also face threats from fishing gear, ship collisions, underwater noise, pollution, and changes to ocean ecosystems.

Conservation programs, safer fishing practices, protected habitats, and international cooperation can help whale populations recover. Protecting whales also supports healthier oceans because these animals play an important role in marine food webs and nutrient cycles.

BOOK REVIEW Mood Matters: MHERA An innovative assessment approach to animal emotionality in the treatment of behaviour problems

There are thousands of books to choose from on dog, cat and horse behaviour and more being published every day, but this book really stands out as a masterpiece. Karin Pienaar is a professional behaviourist with decades of experience under her belt, and she’s finally got round to telling the rest of us how she works.

Whether you’re working as a professional behaviourist, a trainer, or just interested in wanting to know more about how you can build better relationships with the animals around you – this book is for you.

What I like most about this book, apart from the content, is its no-nonsense style. It’s very personable and feels like I’m in conversation with the author which I find really refreshing.

CHAPTER 2

Following a short introductory chapter, Pienaar throws us head-first in at the deep end with Chapter 2, which is the murky world of emotion neuroscience. But no need to panic. She’s holding onto our hand tightly as she reassures us that we can dismiss most of the 100 or so different definitions for what emotions are. The first couple of pages give us a potted history of emotion science, the thorny issues of the politics, and its importance (and neglect) in animal welfare. We then dive right into the practical application of emotion science which lays the foundations for the rest of the book.

Of all the emotion theories out there, Pienaar has broadly adopted 2 of them that are historically irreconcilable because they are at opposite ends of the emotion spectrum. However, she manages to seamlessly combine them into MHERA, the tool she has developed to facilitate a step-by-step, systematic approach to solving behaviour problems in animals. MHERA itself is the subject of Chapter 3.

The first emotion system of MHERA is Jaak Panksepp’s 7 core EMOTIONS, namely SEEKING, PLAY, CARE, FEAR, RAGE, PANIC/GRIEF and LUST. The CAPS indicate Panksepp’s unique categorisation of his system. This is a really important (and equally confusing) point because the labels Panksepp has used are terms already in common use. So Panksepp’s PLAY SYSTEM has a precise anatomical location in the brain and plays (see what I did there?) a distinct functional role in an organism’s emotional life. Likewise, FEAR, CARE etc are dissociable from the colloquial use of the same terms.

Since its introduction into the mainstream companion animal behaviour community in 2005 (see Forward and Chapter 1 of the book), Panksepp’s SYSTEMS have subsequently been interpreted, misinterpreted, used, and abused far and wide throughout the animal community. However, Pienaar’s summary of ‘The Panksepp 7’ is one of the best I’ve seen. Full of nuance and with a distinctive bias toward its practical hands-on application which is the style played out through the rest of the book. For example, in her description of the SEEKING SYSTEM, Pienaar tackles some of the outdated misconceptions concerning rewards, motivation and reinforcement that are still in common use within the animal training and behaviour community. This is a motif re-visited in Chapter 4, which I applaud because the dogma that pervades learning theory has needed knocking down a peg or two for decades. More in Chapter 4 later.

CHAPTER 3

Chapter 3, an Introduction to MHERA, is a roll-up-your-sleeves tour-de-force supported by 20 illustrative figures and 3 tables. That’s a lot of bang for your buck, and it’s also where the second emotion theory of MHERA comes in (Panksepp’s is the first, discussed above). While Panksepp 7 discrete emotion SYSTEMS are crucially important, they are not enough on their own to describe the full phenomenological lived experiences of a thinking organism. What’s missing are the gaps in between that describe MOOD STATE.

I think of it this way. If emotion states are represented by distinct colours of paint, the accompanying mood state (note, there’s just one of them) is what you get when you mix the paints together. Furthermore, once mixed you can’t unmix them again. This analogy works well because, unlike emotion states, mood states are persistent and resistant to change. This is a popular concept in human psychology because it links neatly into personality types (Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism). There’s a lot of empirical evidence that personality type influences welfare in (other) animals too, rendering them more or less vulnerable to stressors.
This is where the holistic approach adopted by MHERA really comes into its own as a fabulous tool that anyone can use to assess welfare. MHERA also facilitates coming up with solutions to help support an animal that is not coping well with life. So, it’s both a diagnostic tool and a tool that helps forge a remedial solution.

CHAPTER 4

The responsibility learning theory in Chapter 4 has been handed over to a second author, Nancy Payne. A shrewd move on Pienaar’s part because Payne offers us a no-nonsense, refreshing perspective by someone from a very different field – quantum physics. The title of the Chapter (Reinforcement – what is it really) gives us a clue where she’s headed with this. For example, she dismantles the widespread idea that dopamine is the ‘happy hormone’ that’s somehow the key to the feeling of ‘reward’. This (wrong) belief recently went viral in the fashion industry and ended up in the movies as Emma Stone’s Yellow Dress in “La La Land”!

Thank goodness, characters from the old world of behaviourism like Pavlov and Skinner don’t get a mention. Instead, Payne taps into more recent and relevant research from the world of neuroscience. Why is this important? Because behaviourism relegates the role of the brain/mind into a black box and then pretends it’s not there. Accordingly, the behaviour you see in a dog is the totality of what there is.

Neuroscience instead takes us behind the scenes and endeavours to work out the neural substrates of that behaviour. Yet, even after 50 years of hard-graft research, this is still a work-in-progress, and we still have much to learn about what actually motivates a particular animal to do that particular thing in that particular context. And for anyone working with animals, this is a good thing. It reminds us to challenge anyone who claims to have the answer to every animal’s behaviour problem.

CHAPTERS 5 – 9

The remaining 5 chapters of the book are its jackpot prize for me, real-world case histories. Each chapter features a different species – dog, cat, cow, horse and finally a gorilla – where Pienaar walks us through how MHERA was used to solve their behaviour problems. Now, I know some dog folks reading this are going to be disappointed that all the cases are not dogs. I can reassure you from decades of experience that you’ll take away far more from this cross-spectrum of species than you would had they all been canines. First, you’ll see just how much can be achieved in situations where your options and the resources available to you are so limited. Second, you’ll get a different perspective on aspects of our relationship with dogs we take for granted, such as consent. The final chapter discusses this very problem with a rather grumpy gorilla!

 

Finally, the book is a decent, large-format size allowing for space to really showcase the 49 figures and numerous tables. I’m fed up with paying good money for books only to find a I need a magnifying glass to read the illustrations, so well done to Dogwise the publishers for this.

 

An evidence-based approach to choosing, combining, and using commercial calming supplements in the rescue setting

An overarching welfare priority of animal rescue centres is the management of stress. The successful rehoming of especially cats and dogs depends on how well they learn to manage their own negative emotional states during their stay.

Continue reading “An evidence-based approach to choosing, combining, and using commercial calming supplements in the rescue setting”

Where horse meets hound: the diet, microbiome, emotions, and behaviour connection

Very please to be talking about dogs and horses at Royal Windsor Racecourse. Here’s a summary from my slides…

The most extensively studied species in the science of brain, mind and emotion is ourselves. Coming in a close second place are dogs. This is because, over the last 40 years, there has been an explosion of research in universities all over the world, where whole departments have been established, dedicated to the study of canine cognition.

Continue reading “Where horse meets hound: the diet, microbiome, emotions, and behaviour connection”

Dopamine and Serotonin – Dog Speak with Colin Spence and Patricia McGrady

For more chats – CLICK HERE

Chat, banter and discussion about the dog world. Colin and Patricia are behaviourists and will be talking about everything from diet to behaviour. With industry speakers, case studies, news, views, controversial subjects, topical issues and plenty of tips and knowledge, these podcasts are for anyone with an interest in dogs.

Here Robert Falconer-Taylor talks about neurotransmitters including Dopamine and Serotonin

Robert Falconer-Taylor chats with Claire Martin

For more chats – CLICK HERE

@Dog Centred Care hosts chats from the Dog Centred Care FB group – https://www.facebook.com/groups/dogcc

In this next discussion as part of his monthly series , Robert talks with Claire Martin. They talk about the role of dog sports in the lives of Claire and her dogs, the role of her dogs in education and the benefits they can bring to the social and emotional well-being of our young people, the dynamics of living with a large group of dogs and linking all of these to the hedonic budget of the dogs through activation of the seeking system.

This is a cracker !

BIO from Claire :

I am a COAPE trained behaviourist and trainer, a secondary school teacher and I live with a family of 9 rescue sighthound dogs.

The dogs and I train and compete at a variety of dog sports including canicross, bikejor, scooterjor, agility, hoopers, lure coursing and mantrailing.
My dogs also come to work with me, to the specialist school where I work, and they are present in lessons and in everyday school life. Our students have a range of medical needs but many are very able and most are neurodiverse.

With a colleague I have written a level 2 accredited qualification in dog training and husbandry that sits within the school education framework and I teach this course to around 50 students a year.

I see some behaviour clients still, despite my full time career!, primarily dogs who are reactive and often bite risks.

My particular skill set is in developing the ‘hedonic budget’ of these dogs, particularly balancing their individual emotional needs (conceptualised within Panksepp’s emotional SYSTEMS e.g. SEEKING in all its variations, see Karin Pienaar’s Talk on MHERA) and mood state.

I also volunteer as the sole behaviour adviser for a podenco rescue and as part of a team providing support to the dogs homed by a U.K. sighthound rescue.