Rough drawing

Firework is an art of audio-visual imagery, which changes from moment to moment, and is difficult to express by photograph or picture. The moving picture is also unsatisfactory at present for the expression of fireworks. 

If an instrument could express the 26 kinds of light on a screen correctly, it would be a tremendous advantage in the progress of firework art. 

However a picture is more effective than a photograph as an auxiliary method for expressing the image and is used quite frequently. 

The illuminant in fireworks is called a star . Perhaps the name came from the fact that the illuminating light resembles a real star in the sky. There are two configurations of the star with tail (s, r, 1, k) and with no tail (a f, m q, g i, j). Smoke (t z) always has a tail and is called a smoke star . In pictures a star with a tail is expressed by a line, vith no tail by a point. The trajectory of a star with a tail is denoted by a straight line or curved line (Fig.l). a is an image of a fast star and ba slow star. The slow star is curved by the force of gravity. Artists 

When we draw these lines, we must consider the firework technique. The stars with a long burning time which can be drawn by the line b are Palm(l), Hiki(s) and smoke (t z). But in the future with the development of technique it should become possible to produce (r) with long burning time. 

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Problem 6.18 What about the second step in the electrophilic addition of HCl to an alkene—the reaction of chloride ion with the carbocation intermediate Is this step exergonic or endergontc Does the transition state for this second step resemble the reactant (carbocation) or product (alkyl chloride) Make a rough drawing of what the transition-state structure might look like. 

I have two or three rough drawings here, representing the kind of furnaces which he employs. They are larger, however, than the actual furnaces he uses. Even the furnace in which he carries on that most serious opera-... 

Figure 3. Graphics Model Builder menu. Also depicted is the rough drawing of a molecule using the joystick curser device.

It is possible to roughly draw a line through the points in Figure 18.4 by adjusting the line in such a way that there were as many points below the line as above (Figure 18.5). However, it is possible to establish a straight line the Method of Least Squares to establish a straight line, but initially the slope of the line and the value of the y intercept (the value on the y coordinate where the line crosses the y-axis) are required. 

Running number, gross formula, and Chemical Abstracts registry nrunber appear in the first line of each entry, followed in the second line by references to previous volrunes if applicable. Then a list of symbols of all parameters collected for the molecule under consideration is given for a short overview, and at the very right of this line a structural formula of the moleeule is provided. In the ease of a van der Waals complex the mutual orientation of the constituents can normally be obtained from a rough drawing. Important characteristics of a molecule may be commimicated by plain text. 

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