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Make a Battery From a Lemon

  1. 18-gauge copper wire (smaller gauge will work too, but 18-gauge is stiffer)
  2. Wire clippers
  3. Steel paper clip (Some people find that a 2-inch strip of zinc works better)
  4. Sheet of coarse sandpaper
  5. Lemon
  6. Help from an older friend or an adult

Have your older friend or an adult strip 2 inches of insulation off the copper wire. Clip the 2 inches of bare wire with the clippers.
Straighten out the paper clip and cut about 2 inches of the straightened steel wire, or use a 2-inch piece or strip of zinc.
Use sandpaper to smooth any rough spots on the ends of the wire and paper clip or piece of zinc.
Squeeze the lemon gently with your hands. But don't rupture the lemon's skin. Rolling it on a table with a little pressure works great.
Push the pieces of the paper clip and the wire into the lemon so they are as close together as you can get them without touching.
Moisten your tongue with saliva. Touch the tip of your wet tongue to the free ends of the two wires.

You should be able to feel a slight tingle on the tip of your tongue and taste something metallic.

The lemon battery is called a voltaic battery, which changes chemical energy into electrical energy.

The battery is made up of two different metals (the steel paper clip and the copper wire). These are called electrodes, which are the parts of a battery where electric current enters or leaves the battery. The electrodes are placed in a liquid containing an electrolyte, which is a solution that can conduct electricity.

If you need to buy college essay on lemon batery, feel free to ask!

In a solution of water and an electrolyte, like the acid in the lemon, an excess of electrons collects on one end of the electrodes. At the same time, electrons are lost from the other electrode.

Touching the electrodes to your tongue closes the circuit and allows an small electric current to flow. A single lemon produces about 7/10 of a volt of electricity. If you connected two lemons together, you can power an inexpensive digital watch (uses about 1.5 volts). (Use a length of thin, flexible wire to connect the silver wire of one lemon to the copper wire of the other lemon. Then attach thin wires from the other two wires in the lemons to where a battery's positive and negative poles connect to power the watch.)

The tingle felt in your tongue and the metallic taste is due to the movement of electrons through the saliva on your tongue.

Note About Lemon Energy

We've had some students do this project and then try to use the lemon "battery" to light a small flashlight's light bulb. The lemons did not work. Why? The reason is that the lemons produce only a very small current (about one milliamp). This is not enough electric current to light the bulb. Even with multiple lemons, the amount of current flowing through the wire is not enough. Though the voltage is high enough (1.5 volts with two lemons), the current is too weak. But it was a great experiment! Even if an experiment doesn't work, it helps us to understand how things work. Good work!!!

Butter Flies in my stomach!

It seems to be that I crushed on you. And definitely you have no idea that I did it! Your name is Alex and that's how you look like:

Yesterday we kissed and till that time I can't stop thinking of you! I know we won't make a deal, but I won't give up. Nighty night dear!

Why Are Soap Operas So Popular?

 Watching soap operas is one of favorite pastimes for a considerable number of people. Why? What kind of people usually watches them? I will try to find out.

It is no secret that the greatest fans of soaps are women, especially of elderly age. I think, it is conditioned by the fact that women’s psychology differs greatly from the one men have. They are much more emotional, hearty, empathetic and like to experience many different emotions. Without them they just can’t enjoy life to full extent and can even lose the will to live.

When being young and having a lot of work to do and a lot of things to take care about, women rarely resort to watching soaps, as they already have saturated and interesting life. Other situation is when they don’t live the life they want – their work doesn’t bring them pleasure and too many things disappoint them. Then, watching soaps is a way of escaping the gloomy reality and making life more interesting.
Full essay on Soap Operas.

I had a happy and interesting childhood. As computers weren’t that popular among people and I didn’t have brothers or sisters, I spent almost all the time in the streets playing with other children. When I went to the kindergarten, I met two friends, with whom I started to play and spend every free minute I had. I was really happy till the moment when one of my friends went away to live in the other country.

I still remember that moment. I just couldn’t believe my ears: Helen was going away for such a long period of time – 3 years, or even more. I didn’t know what to do and with whom to spend my free time, as with the other friend I wasn’t so close. Still, people say that time heals all the wounds, and I didn’t have another choice than to try to recollect myself and live further.

After some time passed, I managed to overcome my disappointment to some extent. Helen wrote letters to me, but our correspondence was not as often as I wanted. I always was too busy to sit down and write a letter, and I think that she had the same problem. Thus, there were letters once a month, but they were a real happiness for me. I remember how I waited for the desired letter after I sent mine and how I was upset when I didn’t receive the answer for a long period of time.
More: full essay on Childhood

Writer's Block: Eeny, meeny, miny, moe

If you had to give up swimming, skiing, hiking, or biking for the rest of your life, which would you choose, and why?

Skiing. I already gave it up

Writer's Block: Get up

If you had to eat the same breakfast everyday for a year (and it would be prepared and served to you), what would you choose?

Salad made of meat, potato, cucmbers, tomatos, cornflakes, milk, tea...well you get it.

Writer's Block: Workin' for a livin'

What would you consider the worst job in the world, and why?

Being a God. Everybody wants something from you, always not satisfied with your work,  furthermore you never get the MONEY!

Writer's Block: Truth or dare

If your best friend picked dare over truth, what would you dare them to do, and why?

I would dare him to walk down the street and singing loudly and with passion "first i was afraid i was petrified"...

Topics in Natural Sciences

 Was recently searching for my dissertation topic and found this. Looks pretty interesting:
  • Astrobiology – can science be such without a subject matter?
  • Proofs and disproofs of the Big Bang Theory.
  • The integumentary system of human as natural biohazard suit.
  • Changes in the crystal lattice of metals under the influence of high temperatures.
  • Tectonic movements – how the Earth’s face changes.
  • Impact of chemistry on the history of humankind (move chronologically, from using poisoned arrows and leather making to the discovery of elements and internal combustion engine).
  • Is photon more like a wave or more like a particle?
  • Greenhouse effect, global warming and Climategate – whom should we believe?
  • Is it possible that oceans still hide unknown species of living organisms of considerable size? (mention colossal squids, coelacanth, etc.)
  • Depletion of Ozone Layer – reality or falsification? etc
I wanna chose "The integumentary system of human as natural biohazard suit". How do you think?

Hello World? Something to that tune.

Hello everybody!
I am a newcomer so I don't know what to start with. So let me start with a simple 'Hello World'! Also this morning I've found a pretty-nice aphorism and I wanna share it with U: 'There is only one thing in the world that is worse than being talked about, and that is not being talked about'. O. Wilde. So lets be talked about! Have a nice Day!