Science, Nature and Tech

Fact or Fable? Most body heat is lost through the head

Many people believe that you should keep your head covered during cold weather, as most body heat is lost through the head. It’s certainly true that any part of your body that’s exposed to cooler air will lose warmth; heat always moves from something warm to something cooler (that’s called the second law of thermodynamics). And our heads and faces are more sensitive to changes in temperature than other parts of the body.

Read More...

Art & History

Who Was Maya Angelou?

Maya Angelou was born Marguerite Annie Johnson, in St Louis, Missouri, in 1928. Her brother could not pronounce her name properly and called her Maya, the name that she came to be known by.
She had a difficult childhood – after suffering abuse when she was eight years old, she stopped talking for five years.  She later wrote her autobiography, describing overcoming her childhood trauma, and growing up in the segregated south of USA – when people of colour and white people were not allowed to mix. She was committed to the civil rights movement, which aimed to break the segregation and allow people to live freely.

Read More...

School & Career

A Day In the Life Of…a Biologist

 

Ever wondered what being a biologist might be like? No two scientists work days are the same but I’m going to take you through my typical day to give you an idea

7 AM: I get up and eat breakfast (toast and a cup of tea) before travelling to work.

8 AM: I arrive at work (this is early for scientists, most of my workmates arrive at about 9 AM but I like to get up early!) After checking my email the first job of the day is to turn on the microscope above.

 

Screenshot 2013-11-03 at 17.50.47

The plant root surface is covered in root hairs. This is what they look like under a microscope.To get an idea of the cells, les than 1mm of plant root can be seen in this image

It is similar to microscopes you may have used at school but with a few added features including a special camera. I am fascinated by plants and in my research I am trying to find out more about how some plants (including peas and beans) can form a friendly relationship (known as symbiosis) with soil bacteria, which provide nutrients that the plants need to grow. I use the microscope and camera to study living cells in plant seedling roots (where the symbiosis is set up).

 

 

 

 

10:30 AM: Tea break and seminar. I have a tea break with some of my workmates and then go to a seminar where other scientists talk about their research and we discuss it afterwards. Seminars are a great way to find out what experiments other scientists are doing, and to get ideas for new experiments to try.

 

12:30 PM: I have lunch with my friends.

Screenshot 2013-11-03 at 18.00.55

1:15 PM: More experiments. For some of my experiments I have to grow plants in greenhouses. Today I visit to check on my plants and collect some to take measurements. This involves digging up the plants and cleaning them to look at their roots. This is fun, but messy! 

3:30 PM: Afternoon tea break.

3:45 PM: Data analysis. I spend the last part of the afternoon drawing graphs of the data I have collected today and thinking about what it shows (does it answer the research question? Do I need to do further experiments?). I also spend some time reading research articles to find out about experiments other scientists have been doing.

 

5:30 PM: Hometime! Once I am home I have dinner and then relax.

One of the things I love about being a scientist is the feeling of discovering the “unknown”. The experiments I carry out reveal little details that when combined with other scientist’s data can help us build up a picture of how the plant-bacteria symbiosis is set up so that pea and bean plants can get the nutrients they need to grow. We hope that this knowledge might be able to help improve farming in the future.

 

About the Author

Sarah Shailes is a plant scientist working at the John Innes Centre, Norwich, UK. She studies how some plants can form a friendly relationship (symbiosis) with soil bacteria, which help the plants gain nutrients they need to grow. When she isn’t in the laboratory she enjoys knitting and hiking, and helps run a local Brownie Guide unit.

 

 

Read More...

Written By You

The Adventures of Cha Cha the Dragon – Part 2

Following on from Iona’s wonderful story of Cha Cha the Dragon, here is Part 2

 

Once upon a time, in deepest China, there lived a man named Li-Wang. Li- Wang was getting on in years. His wife and son had both died in childbirth, and he had only his beautiful daughter to comfort him and to keep him company. It was widely said that the daughter of Li-Wang could be no mortal being, but was an angel, sent straight from the Gods as a token of their grace and kindness. However, Li-Wang, poor man rarely ever got to see his beautiful daughter, for Li-Wang was a builder, and his latest line of employment was on The Great Wall of China Teapots.

Read More...