Freeze drying Essays

  • Essay On Freeze Drying

    550 Words  | 2 Pages

    Freeze drying, otherwise known as lyophilization, is a form of drying that is done by freezing a wet substance and allowing the ice to directly sublime to vapor by exposing it to a low-pressure amount of water vapor. This method of drying takes place in a special type of vacuum desgned for this method. Freeze drying is used in many instances, often as a means to preserve material or decrease the weight of that material; thus allowing transportation of certain substances to become less difficult.

  • Kitchen Science

    2062 Words  | 5 Pages

    EGGS "A ""A Hne"A hen is only an egg's way of making another egg." ~ Samuel Butler making another egg." "Besides for being a staple ingredient in cookie dough, we like eggs because there's lots of science involved with them." ~Blake Rider One of the most notable characteristic of an egg is how much an egg white can foam up. Why does this happen? Eggs are approximately 90 percent water and 10 percent protein. There is an electrical attraction between water molecules (for this reason

  • Freeze-dried Food: A Contribution of the Incas to the Modern World

    1071 Words  | 3 Pages

    though; this process that was used was freeze-dried foods. Many people think that it was only recently invented in the 1960s, but it was not invented, or even thought of in a NASA lab. Annie Matthews says “as far back as 1200 A.D, the Incas freeze-dried potatoes” (Matthews). The Incas used many important inventions such as suspension bridges, terrace farming, and the calendar, but one main invention that drove the Incas to power was freeze-dried food. Freeze-dried foods is really helpful for us today

  • Does Dehydration Reduce the Nutrient Value in Quality of the Food?

    1605 Words  | 4 Pages

    there is an adverse effect on nutritional value of dehydrated foods. In the article, “Food Preservation Drying Foods,” the extension advocates for a reconsideration of the constant support for dehydration, it explains that drying is one of the oldest methods of food preservation. Techniques have been passed from one generation to another based on what worked and what didn’t. Methods used for drying food have become sophisticated over time. Today the variety of dried foods in the market place has created

  • iceman - preservation

    2844 Words  | 6 Pages

    proved that the iceman’s body position and placement of weapons were preserved in the same position from when the Iceman had died, it had also been proved that the body was initially covered in a thin layer of snow which had helped complete the freeze drying process before it turned into ice. The body had been so well preserved because of the depth that the Iceman was actually lying in the ground, which was near the watershed (watershed meaning a line of high land where streams on one side flow into

  • Photography

    1717 Words  | 4 Pages

    Photography is more than snap shots at a family reunion. A fine art photographer makes more choices than people realize. Point and click is not the solution for taking a photograph (John Szarkowski 9-12) . A fine art photographer may choose to freeze action or to blur it. The freezing or blurring of action is not just done at the push of a button, it takes knowledge and an understanding of how apertures and shutter speeds relate to each other under different circumstances with different types

  • Naturalism in Jack London's To Build a Fire

    1273 Words  | 3 Pages

    progressed, the man made mistake after mistake that sealed his fate. The man's first mistake was to step into a pool of water and soak his legs to the knees. This blunder forced the man to build a fire to dry his wet socks and shoes so his feet would not freeze and become frostbitten. When the man began to build a fire he failed to notice that he was doing so under a large, snow laden spruce tree where he was getting his firewood. When the man had a small fire that was beginning to smolder the disturbance

  • Airbags - Pop Em Or Keep Em

    1326 Words  | 3 Pages

    the passenger seat belt. Her older brother, Sean, quietly sleeps in the backseat while his mother drives the exhausted children home. Suddenly, out of nowhere, a tall, 12 point buck is caught by the vehicles' headlights. Both the buck and the mother freeze. A milli-second later, a powerful explosion occurs inside the cabin. The airbags deflate nearly as quickly as they inflate, and Sean begins to scream. His mother is fine. The seatbelt along with the airbag saved her from any serious harm. She is still

  • Oocyte Cryopreservation

    944 Words  | 2 Pages

    women wait until after the age of thirty five to have children (Wadyka). Women have always had a disadvantage when it comes to feeling pressured to have children at a young age. Men can have children much later in their lives, and the technology to freeze sperm has been available for many years. On the other hand, a female is born with six million eggs, and cannot produce any more. At puberty she has lost all but five hundred thousand, and each menstrual cycle uses approximately 30 eggs (Brown).

  • Eulogy for Mother

    893 Words  | 2 Pages

    extraordinary cook when it came to particular dishes. Like her spaghetti sauce. Most of you here might have met my mother after she retired from spaghetti sauce making, but she used to cook sauce for three days in a 20 quart army pot. Then she would freeze it into quart containers for her children and her own use. Whenever we came to visit her, we would go home on the plane with a shopping bag filled with frozen containers. We felt sorry for those who were not so fortunate as to have the spaghetti sauce

  • Assessment & Grading in the Classroom

    1461 Words  | 3 Pages

    failing grades will have to be given, but as long as their way of grading is fair to every student, it is something that they will have to deal with. There are many methods of measuring a student’s ability to accomplish a task. However, many students freeze under normal testing procedures and may need to be evaluated in another manner. Also, it is important for teachers to understand fair grading procedures so students can best benefit from effective tests. By knowing the main ways of measuring student

  • Dance Dance Revolution

    538 Words  | 2 Pages

    down on the corresponding arrow when it reaches on top of the screen. In writing it sounds simple, but this game will test a player's eye-hand.. err.. eye-foot coordination. All of the songs have cleverly designed dance patterns that include jumping, freeze arrows and off-beat steps. Not only do the songs have varied dance patterns but there are three difficulty settings available to the player based on how good the player is including: light, standard, and extreme. It takes time to get better at, but

  • Quotes Which Can Be Used When Writing Your Essay on The Crucible

    1363 Words  | 3 Pages

    mindset in order to draw an objective conclusion from the circumstances he was dealing with. This brings an implication of irony because this attitude is what leads him to be drawn into the hysteria. John Proctor: “Elizabeth, your justice would freeze beer.” This quote is a representation of John Proctor’s feelings about his wife’s demeanor. He feels that she is too harsh and judgmental. This manner of thinking was common amongst the Puritan people of that era as they were strictly religious

  • Gone Fishing

    1117 Words  | 3 Pages

    way in the back of the golf course.  One night (a friends name) and I had an experience there that would shake us up for a long time to come. The night started out like a lot of other nights.  First we went to go eat some ice-cream from Foster-Freeze, then we would get on our bicycles and pedal our little butts all the way to the golf course.  Once there, we would get on this road that golf carts use to drive around. The road was very windy.  When we arrived we would just throw our bikes down

  • Autobiographical Writing on my 5th Birthday

    575 Words  | 2 Pages

    kitchen was the Aladdin's cave of cuisine and provisions. On the morning of my birthday my dad came in my room picked me up to carry me across to next door. I was still asleep not really knowing what was going on around me until the fearsome freeze of the early morning hit me round the head, winded me, then chopped off my fingers and toe's. My dad rushed to get me to Maureen's house as quick as he could when I got in there me and my dad sat down and had a goblet of rosy lea (tea) with Maureen

  • Social Networking: The Death of Privacy?

    2738 Words  | 6 Pages

    Social networks have become an increasingly popular way for people to communicate over the last decade. Whether it is through a wall post, a picture, a video, or a link, users are able to share stories and details about their lives through social networks such as Facebook, Twitter, MySpace, and YouTube. Mark Zuckerberg, a Harvard student who hacked the university’s network to obtain photos and information about other students on campus, created Facebook in 2004. Today, Facebook has more than one

  • Future of Svalbard

    659 Words  | 2 Pages

    affect more and more areas. Firstly, the landscape around would be dramatically eroded. Whereas a glacier pushes out of the way objects in its path, and erodes the surrounding area through a combination of ablation, plucking and freeze-thaw, the glacier itself commonly hides the features it creates, but when the glacier melts, features such as cirques, horns, arêtes, hanging valleys and waterfalls can be seen. Also, the melt water would itself cut a small v-shape in the base of

  • Poem #640: Interpretation

    1082 Words  | 3 Pages

    Our life—His Porcelain— Like a Cup— Discarded of the Housewife— Quaint—or Broke— A newer Sevres pleases— Old Ones crack— I could not die—with You— For One must wait To shut the Other’s Gaze down— You—could not— And I—Could I stand by And see You—freeze— Without my Right of Frost— Death’s privilege? Nor could I rise—with You— Because Your Face Would put out Jesus’— That New Grace Glow plain—and foreign On my homesick Eye— Except that You than He Shone closer by— They’d judge Us—How— For You—served

  • Cryonics

    974 Words  | 2 Pages

    Cryonics If you’ve ever seen the Austin Powers movie I’m sure you remember the part where they cryogenically freeze Austin and then thirty years later thaw him out to save the world. While we all know Austin Powers isn’t real, I’m sure you wondered if this freezing could be done in real life. Today we will look at what exactly cryonics is, what businesses claim to provide it, the procedure and its risks. Cryonics is the freezing of humans to preserve them for a later time. Yes, it is a possibility

  • Life After Death

    1114 Words  | 3 Pages

    Crashing on the Earth in Jerusalem, his head formed an upside down cone inside the Earth. This is where is located the Hell. In the Hell, people pay for their sins with different penitences (12-13). For instance, a person that committed homicide will freeze in a lake frozen by the breath of Satan (XXXIV canto). If a person during his or her life commits any sins but asks for forgiveness, then he or she will go to the Purgatory. The purgatory is represented by an island with a mountain (23). One source