Playing Magic with Magnet

I believe every one in this world ever heard magnets. As we know magnet can inerect with another things by touching them. Can  magnets interact without touching the object? Scientists have try it  through air, water, glass, and other objects. Now we will study how can it happend? Check it out J

What You Need?

1.A bar magnet or magnet U

2. Paper Clip

3. Iron Powder or other metal objects from

4.Scotch Tape

5. Paper

6. Glass

7. Water

8. String

Try These:

1.     Tie the paper clip to the end of the string. Then attach the other end of the string with tape on the table or floor. Slowly lift the magnet towards the paperclip until it attracted. Be careful, do not get stuck the magnet to paper clips. Then try lifting magnet upwards slowly, try keep the distance of paper clip and magnet distance is always the same, whether the paper clips will be brought up to follow the magnet?

2.     Place the iron powder into the glass. If no try to find objects made of iron like a nail. After that, hold the magnet from the outside of the glass. Is there iron  in a glass could be attracted by a magnet?

3.   Now, pour water into the glass containing iron powder earlier. Then try to hold the magnet from outside the glass. This time the iron powder is attracted by a magnet? When finished, discard the water and pat dry with a tissue iron powder to avoid rusting.

Result

1.     The paper clips will brought up to follow the magnet

2.    Iron in the glass attrached by magnet

3.    Iron in the glass still attrached by magnet

Facts about Magnets:

After the experiment, we can see the magnets can attract objects made ​​of iron, even though there are medium such as air, water, paper, and glass. So the magnet can attract iron without direct contact with the iron. But the medium is not too thick for small magnet.

Hope it useful :)

Why when we turn off the televison the lamp still on?

Have you ever torn off one lamp in your house? What happend to other lights lamp? Is it turn off too?. The answer is no, the other lamp will not turn off too. Why it can be happend?, it is because our electricity in home using parallel circuit. To make you easier understand this concep, now i will give you a small experiment to proove that, check it out  :).

Required materials : 1. Two flashlight bulbs with sockects

                               2. Dry cell

                               3. Half a meter copper wire

                               4. Switch

                               5. Scissor

Step by step procedure :

1.    Cut the wire into five parts by scissor. Then strip about ¹/₂ inch (1.25 cm) of insulation from each end of the wires.

2.    Attach a wire to the positive side of the dry cell and connect the other end to the left side of a light bulb

3.    Attach another wire to the negative side of the dry cell and connect it to the switch

4.    Get another wire and conncet to the switch to the right side of the light bulb

5.     Add one more bulb to the setup by connect another wire to the left side of the first bulb and connecting the other end on the left side of the second bulb

6.    Connect another wire to the right side of the first bulb and connect it to the right side of the second bulb. Caution : Do not leave the wires on the screws for more than 5 to 6 seconds. The bare wire and lamp can get hot enough to burn you. Allow them to cool before touching them. The circuit  picture :

7.    See what happend when to the fiirst bulb when the second bulb added.

Result:

The adding of the second bulb is not affect to the brightness of the first bulb. The connection was not broken, the first buln is still on and light.

Why?

The electric current has more than one path to follow through the connected lamps in this experiment, so the circuit formed what is called a parallel circuit. The arrows in the electrical schematic in Figure 18.2 indicate the movement of the current (e') away from the negative terminal of the battery through the bulbs, then back to the positive terminal of the battery. At junction A (one of the screws on the side of lamp base 1), the current divides before moving through the lamps. Then the current recombines at junction B (one of the screws on the opposite side of lamp base 1) and returns to the positive terminal of the battery. The facts that the lamps are identical and glow with equal brightness show that the same amount of current reaches both lamps. This way, it is better than series circuit since the devices can be switched on and off separately without breaking any circuits and best circuit at home.

Ecstasy? It Make You Moving All The Time

Ecstasy??
I believe every one in tihs worl ever heard about this word.

Ecstasy ia one of anasthetic that made ilegally in a labotratorium in tablet or capsule form. Picture above is the example of ecstasy. Ecstasy is part of drug in psikotropika. Ecstasy make the user of Ecstasy has uncontrolled energy and also can fell high dehidration. That’s why the effect of ecstasy make our body always moving.

Immediate effects

Many people have experienced the following effects soon after taking ecstasy:

·         increase in confidence;

·         feelings of well-being;

·         feelings of closeness to others, hence the term ‘love drug’;

·         anxiety;

·         dilated pupils;

·         jaw clenching, teeth grinding;

·         increase in heart rate, body temperature and blood pressure;

·         nausea;

·         loss of appetite; and

·         sweating.

Higher doses

Higher quantities don't appear to enhance the desirable effects and may cause:

·         convulsions (fits);

·         vomiting;

·         floating sensations;

·         irrational or bizarre behaviour; or

·         hallucinations.

Overdose

Overdose from ecstasy can occur. It is usually characterised by very high body temperature and blood pressure, hallucinations and an elevated heartbeat. This is especially dangerous for those who have an existing heart condition or breathing problems, and for people with depression or other psychological disorder.

Death

Although it is difficult to determine the exact number of ecstasy-related deaths that have occurred, the toxic effects of ecstasy that can lead to death include the following.

·         Heart attack.

·         Brain haemorrhage.

·         Blood clotting.

·         Kidney failure.

·         Overheating: the combination of taking ecstasy with prolonged and vigorous dancing raises the body temperature to dangerous levels. Because it is often taken in hot, humid venues the risk of death by overheating (hyperthermia) is further increased.

·         Drinking too much: several deaths have occurred from dilutional hyponatremia — a condition whereby a person’s brain swells from excess fluid intake, inducing a coma.

Long-term effects

Research indicates that few people tend to use ecstasy for a long time. This is possibly due to the severity of undesirable effects, which tend to increase the longer ecstasy use continues, while the pleasurable effects diminish. A person taking ecstasy regularly may find that they are not eating or sleeping enough and are neglecting their health. They may become ‘run down’, have reduced energy levels and be more susceptible to colds, 'flu and infections.

Currently, much research is being undertaken to investigate the effects of ecstasy on the brain. There is limited evidence suggesting that ecstasy causes damage to some parts of the brain.

For more information, please click on the Australian Drug Foundation's DrugInfo Clearinghouse web site link below.

 Resource:

http://www.drugabuse.gov/publications/teaching-packets/neurobiology-ecstasy/section-iii/5-long-term-ecstasy-use-may-impair-memory

http://terselubung.blogspot.com/2011/10/efek-efek-mengkonsumsi-pil-ekstasi.html

http://www.mydr.com.au/addictions/ecstasy-effects-on-the-body

Sesungguhnya

Tak ada sedikitpun niatku

Untuk memasang kembali kaca spion di perjalanan merah jambu ini

Untuk mengintip kembali jalan jalan sebelum sampai kesini

Yang sangat menjanjikan kebahagiaan hidup ini

Bukan aku yang memasang kaca spion itu, kaca itu tiba tiba terpasang kembali kala terlintas deretan huruf membentuk sebutanmu

Akupun tak ingin terlihat seperti lemahnya kapas kala terkena tiupan angin

Akupun ingin menjadi batu karang yang hitam pekat, garang dan kuat

Tetapi aku hanyalah potongan tulang rusak yang mudah sekali rapuh

Aku rapuh karena aku hanya potongan yang belum menemukan pasangannya

Asal kau tahu, mungkin aku aneh, tapi ketika bagian merah jambu dari ku telah kau sentuh, tak semudah itu aku menghapusnya

Kau tahu, sulit sekali, telah kutemukan berbagai macam penghapus, tetapi tak ada yang bisa menghapus sentuhan yang telah kau berikan kepda bagian merah jambu ini.

Kala kulihat kau tertawa riang dengan gagahnya, aku meringis, serasa ada pisau pisau halus yang menyayatku, meyentakku

Bukan, bukan aku sedih melihat kau bahagia, tapi aku miris, miris mengapa aku tak jua kunjung sembuh dan bahagia

Kau orang yang kueja dengan sayang

Terkadang, ingin sekali ku membenci mu, tak menganggap kau ada, ataau bahkan tak pernah ingat kau ada.

Tapi dan lagi lagi tapi, itu bukanlah hal mudah hai orang yang kueja dengan sayang

Sampai sekarang, telah beralalu berpuluh puluh malam, kau tetap di bagian merah jambu ini. Hanya kau di bagian merah jambu ini

Maafkan aku, ternyata luka yang kau berikan di bagian merah jambu ini, tertutup oleh besarnya bekas sentuhan yang telah sebelumnya kau berikan

Maafkan aku, ternyata aku masih dan terlalu...

Kinetic Energy

                                                                  Kinetic Energy

First Definition for Kinetic Energy

When something is in motion it is said to have kinetic energy.

Formula for Kinetic Energy

For an object that is moving the kinetic energy equals one half times the mass of the object times the square of the speed of the object. In symbols:

E_K = (1/2)mv²

Example Calculation for Kinetic Energy

How much kinetic energy does an object have if its mass is 5.0 kg and it is moving at a speed of 4.0 m/s?

EK = (1/2)mv2	Formula for kinetic energy.
EK = (1/2)(5.0 kg)(4.0 m/s)2	Plug in values for mass and speed.
EK = 40 J	Kinetic Energy equals 40 J.

Example Kinetic Energy in Daily Life

©   Orbital motion: moons about the planets, or the planets around the sun. The motion of the stars in a galaxy, orbiting satellites and space vehicles. 

©   Random linear motion: On a molecular level, vibrations of molecules, gas molecules bouncing around a     room.

©   Rotational or torquing motion: spinning flywheels, rolling balls or wheels 

©   Projectile (parabolic) motion: a fired bullet, a thrown ball, a boy jumping 

©   Linear motion: running, bowling, aircraft in flight, a moving car or train, a boy skateboarding

    The Picture above is one of example Kinetic Energy. The roller Coster has the higest value of kinetic energy in the higest position.

      The picture above is also one example of kinetic energy. The Ball started have kinetic energy when it fall down from mountain

Thank You. Hope it useful :)

brontakers foto bts bersama di paintball puri mayang :)

Jambi, 8 November 2010, 

Di depan lab kimia smansa

Seluruh (hampir) brontakers ngumpul untuk membicarakan masalah buku tahunan selolah dan jaket klas,

pada rapat kali ini yang dikomandoi oleh wiang (orang yang dianggap paling bijak), rapat berjalan cukup baik, dengan sedikit tukar pendapat akhirnya kita semua setuju untuk membagi kelas menjadi lima seksi,

pertama seksi jaket yang bertugas ngurusin jaket sampe selesai, seksi foto bersama yang betugas untuk mengurusi semua permasalahn yang berkaitan dengan foto bersama bts, seksi foto masing masing yang kerjanya hampir sama dengan foto bersama cma beda foto yang di ambil aja, dan terakhir seksi editing yang bertugas mengurusi editing bts kelas sampe selesai dan menyerahkannya pada panitia bts sekolah,

seluruh seksi harus bekerja dan melaporkan hasil pekerjaannya hairi jum'at bsok,

Demikianlah hasil rapat hari itu, semua pulang karena lelah telah mengakhiri ujian dan rapat itu.

ahhhh

wuaaaa

selesai juga ujian ini,

satu fakta yang didapat setelah ujian.

orang bakal lebih berani bohong saat dewasa,

bayangin aja gimana perubahan kadar kejujuran seorang manusia dari kecil menjadi dewasa,

apa emang makin dewasa manusia makin gak berdosa saat melakukan suatu dosa?

enggak kan, dosanya sama, malah mungkin bisa lebih besar karna kita sudah paham akibatnya,

terus,

kenapa kita lebih berani bohong?

karna kita udah dewasa?

terus kenapa kalau kita udah dewasa?

gak bakal mudah ketahuan saat bohong?

tapi kan tuhan tetap tahu kita bohong

trus,

kenapa kita bisa gak gugup saat bohong wakti dewasa?

karna kita udh dewasa,

yah itu lagi alasannya,

tapi emang kenapa kalo kita udah dewasa?

kita tetep makhluk tuhan kan?

tapi,

saya bingung,

kenapa orang lebih berani bohong saat dewasa?