This food preservation manual is written to assist the parent or club leader in teaching young people about food safety and preservation through hands-on activities. If you are introducing yourself or youth to the world of food preservation, this is a fun place to begin! As a leader you will need this manual, which includes lists of materials and handouts to be copied. Each youth should have th…
The various multidimensional derivatives take on more complicated forms in non-Cartesian coordinates such as cylindrical or spherical. You can derive the Laplacian for these other coordinate systems by changing variables and rewriting the unit vectors starting from the above Cartesian expression. Throughout this book we will often encounter sets of linear equations. (They are called linear equa…
For more than 150 years, since the publication of On the Origin of Species, biologists have focused on understanding the evolutionary chronicle of diversification and extinction, and the underlying evolutionary processes that have produced it. Although progress in evolutionary biology has been steady since Darwin’s time, developments in the last 20 years have ushered in a golden era of evolut…
Governing is the art of planning and predicting. Developing a picture of long-term jobs and skills requirements is critical for policymakers as they navigate rapid, complex and uncertain shifts in the economy and society. A wide range of areas – from curriculum development and careers guidance through apprenticeships and workplace training to occupational standards, migration and social insur…
Fifteen to twenty billion years ago, the universe arose as a cataclysmic eruption of hot, energy-rich subatomic particles. Within seconds, the simplest elements (hydrogen and helium) were formed. As the universe expanded and cooled, material condensed under the influence of gravity to form stars. Some stars became enormous and then exploded as supernovae, releasing the energy needed to fuse sim…
The human eye is very good at discerning when objects are moving from side to side. If you see your drone moving sideways towards a tree then you know to do something about it. However, once the your drone is a certain distance from you, it becomes almost impossible to tell not only how far away it is, but also whether it is even moving forwards or backwards. Naturally, this increases the chanc…
Across the world, fisheries provide direct employment for around 38.982million people (Food and Agriculture Organization [FAO], 2020). In many coastal regions of the world, and particularly in many low-income contexts, fishing livelihoods remain the primary economic activity. Globally, they make significant contributions towards food and nutrition security, and are …
In this chapter you will look closely at what automatic controls are supposed to do. The elements necessary to provide control are presented. These are often arranged by how they control, either open loop or closeed loop. Examples of each are given. Control systems are also classified by what they control. Servomechanism control systems (control of movement) and process control systems (control…
Francis Urquhart is a ruthless politician determined to cling to his new status as Prime Minister. His power plays, however, are frustrated at every turn by a caring, idealistic new King. As the stage is set for a showdown between Downing Street and the Palace, Urquhart threatens to expose Royal secrets. But the new Prime Minister sets out to destroy not only the King's family and friends - bu…
Fueled with gripping suspense and surprise, Michael Crichton's The Great Train Robbery is a breathtaking thrill-ride that races along tracks at breakneck speed. Lavish wealth and appalling poverty live side-by-side in Victorian London - and Edward Pierce easily navigates both worlds. Rich, handsome, and ingenious, he charms the city's most prominent citizens even as he plots the crime of his c…