Theme: Catching up the Light- XIOPM is Always on the Road!
Organizer: Chinese Academy of Sciences (CAS)
Co-organizer: Xi’an Institute of Optics and Precision Mechanics (XIOPM);
State Key Laboratory of Transient Optics and Photonics (SKLTOP)
Date: From 9:00 to 12:00 a.m. on May 18, 2019
Venue: Zutong Building
In this May, the XIOPM will hold the Public Science Day again!
On the morning of May 18, 2019, XIOPM will be open to all walks of life for free.
Science lectures with real stuff! Numerous popular science talents are waiting for you!
Eye-feasting chemical fireworks show!
An ultra-detailed guideline of the activity held by XIOPM for you!
What are you waiting for? Come to join us!
I. Major Activities
1. Visit the State Key Laboratory of Transient Optics and Photonics (SKLTOP)
2. Visit the exhibition hall of XIOPM to learn about industrial scientific and technological achievements
II. Featured Interactive Activities
1. Science Experiment Show:
Experiment 1:Gorgeous fireworks show
Highly concentrated hydrogen peroxide decomposes rapidly through the catalysis of potassium iodide, releasing a large amount of oxygen. When reacting with detergent water, it will spew out like fireworks. It is one of the famous chemical expansion experiments and is very large in volume, hence is called "gorgeous fireworks show".
Experiment 2: Liquid nitrogen mushroom cloud
Pour boiling water into the oil barrel filled with liquid nitrogen (-196 degrees), the mushroom clouds appear and rise several meters high in a short time, cloudy and misty, like fairyland. Meanwhile, hot water condenses into ice. It involves the knowledge regarding the change of state of matter, the nature of water vapor, etc.
Experiment 3: Magic voice change
The students will be invited to inhale helium and sulfur hexafluoride in the modified balloon. After that, the voice of students who inhale helium will sound like Minions, while the voice of students who inhale sulfur hexafluoride will become very deep. It involves the knowledge concerning the speed of sound, timbre, tone, frequency, etc.
Experiment 4: Fire palm
Pour the butane in soapy water, scoop up foam by hand, and ignite the foam in the palm. As the water forms a membrane on the palm to absorb heat, it will not cause harm to your body. It involves the knowledge on heat transfer, butane, etc.
Experiment 5: Air cannon
Air is used to form a vortex ring, which stably carries energy. Obvious effect will be achieved by adding smoke to the air cannonball. Let the students carry paper cups on their heads and shoot them down with air cannons from a long distance.
2. 
Popular Science Drama- Trick or Treat
Duration: 15-20 minutes
Plot introduction: Through the funny stories of granny and her two children, the students will watch the changes of three common experiments at close range: dry ice, elephant toothpaste and flame reaction.
Special instructions: It is an indoor experiment
III. Funny Activities
Publicity Exhibition Board on the Knowledge of Light
On the International Day of Light, the spread of knowledge on light through exhibition boards is conducive to enhancing the publicity, enriching the activities, diversifying the schedule, meeting the needs of the public at all ages for popular science to the greatest extent, and effectively dispersing the crowd as well.
Souvenir
30 memorial canvas bag labeled with the mark of XIOPM
