Introduction to Physical Science – Week 4 Assignment

Timeline of Discovery

After reading Chapters 9 and 10 in your textbook, select one topic of discovery used in our modern lives. Some examples include microwaves, x- rays, lasers, radiation, nuclear energy, etc. Using the free Online Timeline Maker from Adobe Spark and this printable outline, create a timeline of your selected discovery. Watch this video for assistance in using the timeline creator. You will need to include the following information: 

1. What is the discovery you selected?
2. Who, when, and how was this discovered?
   1. Include any early developments. Was this accidentally discovered?

 i.  First development

 ii.  Second development

1. When was this commercially available?
2. When was this available for residential use?
3. Include dates and information about two negative activities or concerns with using this product.
   1. First negative
   2. Second negative
4. Include at least two different ways this discovery has been used over time and the dates when used.
   1. First way it was used
   2. Second way it was used
5. Include two ways this may be used in the future and marking the anticipated dates of use.
   1. First future event
   2. Second future event

Each timeline marking should include 1-2 sentences of information. Upload your completed file to the assignment area as a PNG and also include your references either as a separate document or typed into the message window of your submission.