Egg in a bottle!

Awesome pressure demonstration!

Hand boiler

Real hand boiler

and the handmade one.

Dippy bird explaination

by "Imbibe Labs"

What happens to every drop of water that evaporates from your water tumbler?

How much energy could that drop contain?
What can you do with such energy....is there a physical quantification?
If you have been wondering about these questions, here are the answers.

At Imbibe Labs, we want to interest students in science by exposing them to physical understanding of scientific phenomenon.We explain science by quantifying what a certain scientific concept can do.

Imbibe Labs is a team of students from Indian Institute of Science, Bangalore. We are looking for educators, animators and investors to join us in this cause.

Contact them -
email - imbibelabs@gmail.com
phone - +919632785469

Acoustic Levitation Chamber

From youtube
(upload by drdeak)

This is an acoustic levitation chamber I designed and built in 1987 as a micro-gravity experiment for NASA related subject matter.
The 12 inch cubed plexiglas Helmholtz Resonant Cavity has 3 speakers attached to the cube by aluminium acoustic waveguides.
By applying a continuous resonant(600Hertz) sound wave, and by adjusting the amplitude and phase relationship amongst the 3 speakers; I was able to control levitation and movement in all 3 (x,y,z) axis of the ambient space.
This research was used to show the effects of micro-gravity conditions that exist in the space shuttle environment in orbit, but done here on Earth in a lab.
This is not "anti-gravity." So don't waste time arguing something pointless.
SEE: http://science.howstuffworks.com/acoustic-levitation.htm

The shape of sound

From Youtube

The shape of sound demonstrated with salt. 

The plane is vibrated at specific frequency. The waves travel across the plane and at some places they add together and at other places they cancel out. Where they cancel out the salt sticks because there is no vibrations and at other places it just gets vibrated away.

Sublimation

Sublimation of Iodine

                           

Dry Ice Boo Bubbles

A thermal acoustic engine

Solar Radiometer

? time table

Dippy duck - A nice toy

Hãy thử giải thích cơ chế vận hành của món đồ chơi bé xinh này nhé :D

Can you explain the operation of this toy? ^^"

Sliding Weights with Triangle

 :) Tiếng Việt nhé :)

 Các vật nặng trượt không ma sát trên dây sẽ cho chúng ta xem một màn biểu diễn về sự khác nhau trong gia tốc.

 Dây thẳng đứng dài 60cm. Dây 52cm hợp với phương thẳng đứng 30 độ. Dây 30cm hợp với phương thẳng đứng 60 độ.

 Nếu ta thả các vật cùng một lúc từ đầu trên của mỗi sợi dây thì vật nào sẽ chạm đầu dưới sợi dây trước? :/

 Chúng chạm đầu dưới cùng một lúc, :D

 Tại sao ư? Các bạn có thể tự thực hiện một số tính toán nhỏ để kiểm chứng bằng lý thuyết. Chúc cuối tuần vui vẻ. 

Mariotte's Bottle

Question #84

(From University of Maryland)

Bình đựng nước như hình dưới có 5 lỗ cách nhau những khoảng bằng nhau d, cho phép nước phun ra dưới dạng những tia liên tục như hình. Khoảng cách từ đáy đến lỗ thấp nhất và khoảng cách từ lỗ cao nhất đến mặt nước cũng bằng d.

The water container shown in the photograph below has five (5) holes spaced at equal intervals of d, allowing water to spray out in coherent jets as seen. The distance from the bottom of the container to the lowest jet and the distance from the top jet to the surface of the water are also d.

Gọi tầm xa của các tia nước là khoảng cách từ điểm tia nước chạm đường ngang qua mặt đáy bình (đường đỏ) đến mặt trước (mặt phun) của bình nước.

For the purpose of this question the range of any water jet is the distance that the jet sprays from the front of the container by the time it reaches the bottom of the container (a vertical distance of d below the lowest hole).

Đánh số các tia nước từ dưới lên là từ 1 đến 5. Hãy sắp xếp các tia nước theo tầm xa, từ xa nhất đến gần nhất :D chúc may mắn.

So here is the question: which of the five water jets has the greatest range? In fact, can you rank the five jets in order of their range,beginning with the greatest range? Let's number the jets from one (1) to five (5) with the lowest jet being number 1 and the highest jet number 5.

The top jet may have the greatest range because it has further to fall and therefore takes more time, so the order of jet ranges might be 5-4-3-2-1. On the other hand, perhaps the lowest jet has the greatest range because it sprays out with the greatest speed, so the order of jet ranges might be 1-2-3-4-5.

Question #84: Rank the five jets in order of their ranges, from the greatest to the least.