Things You Need To Know About A Refractor Telescope

You may be having a refractor telescope in your schools science lab and you might have used it couple of times to teach astronomical facts to your students. Here are some interesting things that you should know about refractor telescopes and should share the same with your students.

  • The first refractor telescope was invented by Hans Lippershey, Zacarias Janssen and Jacob Metius and it was made in 1608 in Netherlands.
  • Galileo was the first person who used the refractor telescope in 1609. He modified and re-oriented the design elements of the telescope made by Lippershey and came up with his own version.
  • The refracting telescope invented by Galileo was less than 2 inches. Today, however one can find telescopes varying in length, ranging between 1 and 5 feet.
  • The length of refractory telescope lenses is not more than 8 inches.
  • In 1733, a newer and better version of the refractor telescope was invented. It was named achromatic refractor telescope and was invented by Chester Moore Hall.
  • The Galilean refractor telescope is not considered to be as reliable as they distort the images quite easily. It is believed that one sees false colors or a rainbow coloured ring of light around the outer edge of the planets when using earlier model of refractor telescope.
  • In order to overcome these problems, Johannes Kepler invented a new and better telescope. The refractor telescope invented by him utilized convex eyepiece as opposed to the concave eyepiece used in the Galilean telescope model.
  • A refractor telescope consists of a tapered tube and a lens placed inside either end of the tube. The larger lens is a convex piece of glass. It directs light to a central image inside the tube and the smaller lens is the eyepiece, which magnifies the image.
  • Refractor telescopes are closed tubes and therefore do not get dust, and other elements. It is quite easy to maintain these telescopes.

Science Lab Experiments: Understanding Their Role in Childhood Education

Science is the study of facts. At the same time, science is also about discovering the world around us, of knowing things, and having new and wonderful idea. It is against this very definition of science that most educators believe that scientific learning that takes place in classrooms alone is not true learning. For fostering scientific learning in early childhood, active, hands-on learning is very important. And this can best be achieved through science lab experiments.

Science lab experiments promote the development of scientific thinking in students. Rather than making the kids memorize the facts, they are made to think and understand things and the world around them. Science lab experiments allow students to ask questions, probe for answers, conduct investigations, and collect data. They are engaged in the investigative nature of scientific learning. Children in fact do science in science labs than simply learning science through textbooks in classrooms.

Science experiments promote discovery and learning. Discovering new ideas is an integral part of learning science. It is something that teachers can’t give to students. Students themselves have to discover new ideas and concepts during their search for knowledge. In science school lab, children conduct experiments. They adopt alternatives, try to work out things in different areas and understand what works and what didn’t really work. Many a times, children work on wrong ideas. But it’s only when they work on the wrong ideas that they understand the real ideas in a much better manner.

 

In school science labs, children are viewed as active learners and not just passive recipients of knowledge. Children are given various opportunities to learn and experiment. Science experiments play a very crucial role in the on going intellectual development of children. In science laboratories, children get time, space, as well as resources to exercise their curiosity. They are given the freedom to engage in new explorations, experimentations, and explanations.

A lot schools are becoming aware of this productive aspect of science projects and experiments and are therefore incorporating them in their course curriculum. By investing in safe and high quality science lab equipment, schools can provide the most effective tools to their students for supporting constructive learning and fostering scientific thinking in students.

To buy top quality science lab equipment, browse the web. You could be preparing the next generation of scientists.

10 Interesting Facts About The Human Brain

The human brain is one of the most important organs in a human body. It helps us think, reason, remember, and learn new things. In fact, our brain and its superior functioning differentiate from animals and other creations of the Almighty.

Here are 10 interesting facts about the Human brain:

  1. The human brain weighs 3 pounds
  2. It comprises 60% of fat and is one of the fattest organs in the human body
  3. Human brain has the capacity to generate approximately 23 watts of power when awake.
  4. Of the total blood and oxygen that is produced in our body, the brain gets 20% of it.
  5. When the blood supply to the brain stops, it is almost after 8-10 seconds that the brain starts losing the consciousness.
  6. The brain is capable of surviving for 5 to 6 minutes only if it doesn’t get oxygen after which it dies.
  7. The blood vessels that are present in the brain are almost 100,000 miles in length.
  8. There are 100 billion neurons present in the brain.
  9. In early pregnancy, the neurons develop at an alarming rate of 250,000 per minute.
  10.  As we grow older, we are unable to remember new things. According to the researchers in the US it is because the brain is unable to filter and remove old memories which prevent it from absorbing new ideas.

To teach the working of the human brain as well as its important functions to kids, you must buy a model of the human brain.

Physics Laboratory Equipment- For Your Children Scientists

What are physics lab equipment?

Different types of tools, instruments, equipment and apparatuses that are used for performing experiments in the different fields of physics are called physics lab equipment. Physics laboratory equipment are generally used in research labs, schools, colleges and similar other places where physics is researched upon. In physics labs, several laws are verified with the help of a wide range of physics lab equipment as well as experimentation. From the very basic physics equipment to sophisticated instruments, children can carry out various types of physics lab experiments.

A physics lab generally employs numerous physics lab equipment to carry out different experiments. These can range from test tunes, glass beakers, heat lamps, test tunes, scales, lenses, balls, magnets, pendulums and so on. A physics lab can also include some of the more sophisticated equipment ranging from telescopes, voltammeters, potentiometers, electroscopes, microscopes, electromagnets, spectroscopes and more. These equipment are used to perform almost every type of physics lab experiments.

Objectives of a physics laboratory:

  1. It reinforces the theory class with certain lab experiments to focus on the sole concepts of physics.
  2. To teach school children the use of physics lab equipment.
  3. To make school children learn the different types of measurements.
  4. To make the school children understand the significance of direct observation based on physics theory.

The significance of physics lab equipment can be understood from the fact that it is almost impossible for students and researchers to carry out their physics researches without having the right instruments.

Buying Science Lab Equipment For Children

Science is an interesting subject and students who opt for this subject at a young age have an easier time learning science while at school. Although it is challenging tasks to get your kids opt for science, however, there are some great ways by which you can help your children become interested in the subject while having fun. One of the best ways is to buy science lab equipment that comes with easy and fun packs making science an enjoyable subject of learning. Be it Chemistry, Biology or Astronomy, there are plenty of cool lab equipment that can eventually turn your children into little scientists.

Here is a list of fun yet useful science lab equipment for your children:

Lab equipment: You can purchase amazing science lab equipment for cool science experiments such as: light meters, sound meters, magnets, conical flask glasses, compasses, refracting telescopes, dissection equipment, bacteria study kits, calorimeters,  tachometers, thermometers, tongs and clamps, ring stands and accessories, mortar and pestles, corks and dropper bottles, screw caps, pipettes, balances, scales, pH paper and glass tubing, eye droppers, and other important laboratory tools.

Chemistry kits: There are various types of science kits available for children of all age studying science.

Microscopes: There are a plenty of different types of microscopes for kids using which they will be able to see and enjoy wonders not visible to the naked eye. Microscope usually comes along with accessories that consist of several blank slides and specimen slides so that children in the lab could go out and discover their own cool things.

Laboratory gear: Laboratory gear like small-size safety goggles, safety gloves, and laboratory aprons can make your children feel like young scientists. Laboratory gear is especially meant to safeguard children from spills and splashes of chemicals.

Nothing can benefit your kids more than learning about the interesting subject of science. When you provide them with kids’ science lab equipment, they can develop a real interest in science and can spend many hours of while learning.

If you want to purchase quality lab kits for your children, look out for well-known online stores dealing in all types of science lab equipment.