Bubble- Double-sided soap bubble or single-sided bubble inside a liquid.

Plate 26A Playing with a Bubble	26B Water Bubble	26C Oil Bubble

(Plate26B&CSource : http://www.google.co.in/search?hl=en&q=Bibble+on+Lotus+leaf&bav=on.2,or.r_
gc.r_pw.r_qf.&biw=1328&bih=574&um=1&ie=UTF8&tbm=isch&source=og&sa=N&tab=wi&ei=Vj4jUMH
SH4rTrQerpYDACQ#um=1&hl=en&tbm=isch&sa=1&q=bubble+inside+oil&oq=bubble+inside+oil&gs_l=
img.12...66.13540.3.15774.18.17.0.0.0.0.0.0..0.0...0.0...1c.94uTjTL7bHg&pbx=1&bav=on.2,or.r_gc.r_pw
.r_qf.&fp=4009ba7b3fe14238&biw=1328&bih=574 ; Aug 9, 2012)

Blister- A blister is a bubble or pocket of liquid affixed to the surface or trapped between two surfaces. Blister is not a freestanding form. Capsules design is based ‘blister’ form. Blister can become shelter of insect’s germination (plate 27A) and protect from outside environment. Formation of blister on skin (plate 27B) forms because of fluid trapped inside and covered by a thin skin membrane. Designers have invented to apply the same paradigm for the storage of medicine inside the bubble pack (plate 27C). The medicine is protected from outside environment. Blister pack is used for various other products as well to protect from external shock or damage. The same paradigm is effectively applied for other products (plate 27D) that require any outside shock. However, the products are protected inside the blister pack with a clear skin plastic so that the information could be read.

Plate 27 A Blister on leaf	27B Blister on skin	27C Medicine Pack	27D Pen Drive