This short article describes how to use Adobe illustrator to change a raster image to a vector image
Open illustrator
And go to file then click place, next, select the picture you want to convert to vector image and then import into illustrator.
Next, click on Window, then Image trace.
In the image trace box, click on the check box next to Preview. This will enable you to see changes made when the image is traced.
Set Preset to High Fidelity Photo
Mode to Color
Palette to Full Tone
Finally select the image and click on Expand to convert the traced image to paths.
If successful, You will see that in the layers panel, each element comprising the picture has been placed in its own layer and grouped making the image fully editable.
Have some text already typed into a text box With segoe print font.
Get a picture of a hand holding a pen and scale it appropriately under the text.
Go to animation then animation pane.
select all the text and click the fade animation.
Set the duration to 0.5.
In the animation pane window, go to the handwriting animation event.
Click the down arrow next to the animation event and click effect options. Set Animate text to by letter.
Directly under Animate text, Set to 100% delay between letters then click ok to close the box. Test the animation, the letters should appear one by one.
Now to animating the hand holding a pen.
Multiply the number of letters in the text by the duration of the last animation which is 0.5.
This value will be the duration of the hand animation.
Go to the animation window, then look for and click motion paths, then custom paths.
The cursor will change to a crosshair, zoom into the text, then with your mouse or pen, trace the path of the text from start to finish as if you were writing it.
The path will be recorded. Double click to preview the animation. Change the duration to the value previously calculated for the hand animation.
In the animation pane window click the down arrow next to the hand animation.
Then click effect options and set smooth start and smooth end to 0 sec. then click ok
Test the animation to see changes.
Now the text and hand animation has been made.
Try to position the hand holding pen picture under the text as realistically as possible.
Set the hand holding pen picture to bring to front.
Set the hand holding pen animation to start: with previous above the animation pane.
Test the animation. The hand holding pen should be writing the text smoothly now.
To make the hand holding pen go away after the animation you need an exit animation.
Go to add animation and click fly out
Set the fly out animation to Start: after previous
This experiment will show how you can cause an aluminum can to implode.
Materials needed
tablespoon 🥄 of water.
Empty aluminum soft drink can.
Hot plate (or electric stove burner).
Bowl filled with ice water.
Tongs enough to fit around a can.
Steps
1.Put the water in the empty aluminum can.
2. Heat the can on a hot plate until the water is boiling and steam is escaping from the opening.
3.Place a bowl of ice water next to the hot plate.
4. Carefully use tongs to grab the can. Carefully and quickly flip the can upside down into the bowl of ice water.
The can should implode
Implode a soft drink aluminum can. Explanation
The steam coming from the can is the water vapor escaping as the water is boiling. Not only does the water vapor escape out of the can, it also pushes out any air that was in there before you heated it. When the can is flipped over into the ice water bath, the remaining water vapor cools, condensing back into liquid water. The amount of water vapor left in the can is equal to about one drop of water. Since all the air was pushed out earlier and now there is only one drop of water left in the can, the air pressure on the outside of the can pushes in on it, causing a sudden collapse, or implosion.
A series connection of batteries is achieved when the negative terminal of one battery cell is connected to the positive terminal of another battery cell. 2 or more battery cells can be connected this way. An example of application of series connection of batteries is in the use of a touch light. Typically 2 batteries are connected in series for the touch light to come on.
In a series connection of batteries, voltage increases while current stays constant.
For example let’s say 2 battery cells are rated 1.5 V and 1A each and the cells are connected in series. Then the combined voltage for the series connection becomes 1.5V + 1.5V = 3V but the current remains 1A.
Using the previous cell ratings, an electrical appliance that needs 6 volts to come on will require 4 battery cell connection in series
Battery cells connected in parallel.
batteries connected in parallel
A parallel connection of batteries is achieved when the positive terminal of one battery cell is connected to the positive terminal of another battery cell. The same is done to the negative terminals of the battery cells.
In a parallel battery connection, voltage stays constant but current increases.
For example let’s say 2 battery cells are rated 1.5V and 1A each. If the batteries are connected in parallel then their combined ratings are 1.5V and (1A +1A) = 2A
Application of series and parallel connection of battery cells
A very good knowledge of series and parallel connection of battery cells enables the development of battery packs with with different voltage ratings and capacities.
There are many types of lithium batteries. The 3 most common types of commercially available ones will be briefly discussed. They are;
Lithium ion (Li-ion)
Lithium Polymer (RC Lipo)
Lithium Iron Phosphate (Life PO4)
Lithium ion (Li-ion) batteries
Lithium ion 18650 batteries
These are the most common types used in consumer electronics like laptops, cell phones, power tools etc. They have the highest energy to weight ratios. These batteries are relatively safe, they won’t just burst into fire. They have long cycle lives. The shortest is about 300 discharge circles, and can reach as high as 1000 discharge circles. The most common workable form is the 18650 cylindrical cell ( 18mm dia. & 65mm height). They have nominal voltage of around 3.7V and a discharge-charge voltage range of 2.5V- 4.2V.
Lithium Polymer (RC Lipo) Batteries
lithium polymer battery
These batteries can provide high discharge rates for long periods of time. They are used for equipment that require high discharge rates such as Remote control led drones, helicopters, cars, planes etc. These batteries are very cheap, cheaper than a typical lithium ion and life PO4 battery. They have very short cycle lives, about 200 recharge discharge cycles. They have a lower discharge – charge range of about 3V – 3.7V. They are very volatile and can easily burst into flames if not carefully handled.
Lithium Iron Phosphate (LifePO4)
lithium ion Life PO4 battery
LifePO4 battery cells are heavier and less energy dense than most lithium ion cells.
These batteries have the longest cycle life of all the common lithium battery cell types.
They have a nominal voltage of about 3.2 V per cell and discharge- charge voltage of 2.5V- 3.65V. The Best applications for LifePO4 cells are projects that require long cycle lives and high safety.
General information in Lithium batteries
Lithium battery cells when fully charged can read up to 4.2V and at its discharged state reads 2.5V. Lithium battery cells discharged below 2.5 V will cause irreparable damage to the cell. This is why Lithium batteries are fitted with a battery management system, BMS. The main function of BMS is to ensure that the battery is properly charged as well as to prevent overcharging and over discharging.
Buy the exact parts you need to build your PC. When shopping for pre-built PCs in the market, finding the one that exactly suits you can be very hard.
Buying the PC components yourself and putting them together to make your PC is usually cheaper than a pre-built one of the same kind. You can also take advantage of deals when shopping for PC components.
You will be satisfied that you are really getting what you need for your business.
Building your computer yourself will help you understand how your PC works and rightly troubleshoot when necessary.
If you are really committed to building your PC you can spread the cost. That is, buying the components one by one until you get everything needed to build. You don’t have to borrow money.
Many prebuilt PCs come with software/Operating systems you don’t need or prefer. When you build your own PC, you install the software and the preferred operating system you need.
Better cooling for your PC is easily achieved by the careful choice of a PC case. You have a variety of PC cases to choose from. Some cases even come with multiple cooling fans That will better cool the processors making your PC work efficiently and last longer.
Its fun and a worthwhile experience when you build your own PC.
