Over time, how have the following improved?
Keeping food to last longer ![Clip Art Cold](http://clipart-library.com/data_images/598721.jpg)
- https://www.materials.sandvik/en/campaigns/fridge-of-the-future/the-history-of-the-refrigerator/
- http://www.historyofrefrigeration.com/refrigeration-history/timeline-of-refrigerators/
- https://www.timetoast.com/timelines/history-of-the-refrigerator–2
-
keeping things frozen
Communication ![alt="Mobile phone clip art free vector for free download about" title="Mobile phone clip art free vector for free download about"](http://clipart-library.com/data_images/478050.jpg)
- https://kids.britannica.com/kids/article/telephone/353842#
- https://sciencestruck.com/invention-of-telephone
- https://www.bbc.com/timelines/zfyfy4j
Washing clothes ![alt="Washing cliparts" title="Washing cliparts"](http://clipart-library.com/image_gallery/275434.jpg)
Entertainment (TV)
- https://www.timetoast.com/timelines/history-of-the-t-v-b8c4231d-0f3f-409d-8670-03e47eacec1c
- https://www.timetoast.com/timelines/smart-tv
Taking pictures ![alt="Photography symbols clip art design images"](http://clipart-library.com/new_gallery/photography-clipart-24.jpg)
Cooking hot foods ![alt="Free clipart image for phonics worksheets, free clipart to" title="Free clipart image for phonics worksheets, free clipart to"](http://clipart-library.com/data_images/590076.jpg)
Being able to use light ![No. 2975 Light Bulb](http://clipart-library.com/images/qTBob96Ac.jpg)
- https://www.timetoast.com/timelines/history-of-the-light-bulb
- https://youtu.be/b1lKwZTtzIY
- https://www.pbs.org/video/scitech-now-timeline-light-bulb/
Bathroom facilities![alt="Toilet clip art"](http://clipart-library.com/new_gallery/toilet-clipart-1.jpg)
- http://blog.english-heritage.org.uk/?s=top+10+toilets
- http://www.localhistories.org/toilettime.html
- https://www.sutori.com/story/the-timeline-of-toilets–WxnsahsAzMg396eZqZCCSZ97