Dry Ice

Dry ice is the solid form of carbon dioxide.

Dry ice is used as a cooling agent, because it is about 80°C (78.5K) colder than frozen water under normal conditions, and only about half as dense. Moreover, for some applications, the convenience its sublimation "into thin air," in contrast to the melt-water left by warming water ice, may outweigh other costs.

Manufacture

Small pellets of dry ice sublimating in airDry ice is easily manufactured. Generally, there are common steps taken in producing dry ice.

First, gases containing a high concentration of carbon dioxide are produced. Such gases can be a byproduct of some other process, such as producing ammonia from nitrogen and natural gas, or large-scale fermentation.[13] Second, carbon dioxide-rich gas is pressurized and refrigerated until it changes into its liquid form.

Next, the pressure is reduced. When this occurs some liquid carbon dioxide vaporizes, and this causes a rapid lowering of temperature of the remaining liquid carbon dioxide. As a result, the extreme cold causes the liquid to solidify into a snow-like consistency.

Finally, the snow-like solid carbon dioxide is compressed into either small pellets or larger blocks of dry ice.[14]

Dry ice is typically produced in two standard forms: blocks and cylindrical pellets. A standard block weighing approximately 30 kg is most common. These are commonly used in shipping, because they sublimate slowly due to a relatively small surface area. Pellets are around 1 cm (0.4 in) in diameter and can be bagged easily. This form is suited to small scale use, for example at grocery stores and laboratories

references: www.wikipedia.org

Saya adalah penggemar berat biskuit Marie. Berikut beberapa informasi tentang biskuit itu

History
The Marie biscuit was created by an English bakery Peek Freans in London in 1874 to commemorate the marriage of the Grand Duchess Maria Alexandrovna of Russia to the Duke of Edinburgh. It became popular throughout Europe, particularly in Spain where, following the Spanish Civil War, the biscuit became a symbol of Spain's economic recovery after bakers produced mass quantities to consume a surplus of wheat.

Marie biscuit

María biscuit.A 'María is a type of sweet biscuit similar to a Rich Tea biscuit. It is made with wheat flour, sugar, vegetable oil and, unlike the Rich Tea biscuit, vanilla flavoring. The biscuit is round and has its name engraved into its top surface. The edges of the top surface are also engraved with an intricate design. While the Rich Tea biscuit is the most popular version of this biscuit in the United Kingdom, it is the Marie version that is most popular in most other countries, particularly Australia, India, South Africa, and Spain. Like the Rich Tea biscuit, many consider the Marie's plain flavor to make it particularly suitable for dunking in tea. Other popular methods of consuming the biscuit includes using two to make a sandwich with butter and marmite or condensed milk spread in between, covering it with golden syrup, and crumbling it up in custard and jelly. Marie biscuits are frequently served to children. Babies may be served the biscuits softened in milk as their first solid food. Marie biscuits are also a common ingredient in home baking recipes. In Spain are also typical to serve Natilla custard with a Maria on it.



source:wikipedia

Humor

Hai readers, I have got some fresh humours. Let's check it out!



Sebutkan 3 fungsi lidah!
1. menjilat es krim
2. membasahi perangko
3. (maaf) mengejek teman

The Horse and His Boy

NARNIA... tanah di mana para kuda bisa berbicara... pengkhianatan mengintai... dan takdir menanti.

Dalam perjalanan penuh tantangan, empat pelarian bertemu dan bergabung. Meski awalnya mereka hanya berusaha membebaskan diri dari kehidupan yang kejam dan menekan, tak lama kemudian mereka mendapati diri mereka berada di tengah-tengah pertempuran dahsyat. Pertempuran yang akan memutuskan bukan hanya nasib mereka, tapi juga nasib Narnia

The Last Battle

Pertempuran terakhir yang terdahsyat

Narnia...
di mana kebohongan melahirkan ketakutan...
di mana kesetiaan diuji...
di mana semua harapan seolah sirna.

Pada hari-hari terakhir Narnia, tanah itu menghadapi tantangan terbesarnya---bukan dari kekuatan asing di luar melainkan musuh dari dalam. Kebohongan dan pengkhianatan menancapkan kuku, dan hanya sang raja serta sekelompok kecil pengikut setia yang bisa mencegah kehancuran semua yang mereka sayangi dalam kisah terakhir The Chronicles of Narnia.

The Silver Chair

Narnia...
tempat raksasa merusak...
tempat kejahatan menimpakan kutukan...
tempat sihir jadi penguasa.

Melalui bahaya-bahaya luar biasa dan gua-gua dalam nan gelap, tiga sahabat dikirim untuk menyelamatkan seorang pangeran yang tertawan. Tapi misi mereka ke Dunia Bawah membuat mereka berhadapan langsung dengan penyihir yang jauh lebih cantik dan berbahaya daripada yang pernah mereka bayangkan.

Magician's Nephew

Sinopsis
NARNIA... tanah di mana para kuda bisa berbicara... pengkhianatan mengintai... dan takdir menanti.

Dalam perjalanan penuh tantangan, empat pelarian bertemu dan bergabung. Meski awalnya mereka hanya berusaha membebaskan diri dari kehidupan yang kejam dan menekan, tak lama kemudian mereka mendapati diri mereka berada di tengah-tengah pertempuran dahsyat. Pertempuran yang akan memutuskan bukan hanya nasib mereka, tapi juga nasib Narnia.