Vegetable Dyes The earliest dyes were of vegetable origin, discovered by accidentally staining garments with juices of fruits or plants. Vegetable dyes are obtained from different parts of plants such as leaves, flowers, fruits, pods, bark etc. These vegetable dyes can be applied directly or with different mordants. ● Indigo: Indigo (blue dye) is calledContinue reading “Vegetable dyes, mineral dyes, animaldyes, synthetic dyes, basic dyes acid dyes.”
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APPLICATION S OF GAUSS LAW
Electric field due to any arbitrary charge configuration can be calculated using Coulomb’s law or Gauss law. If the charge configuration possesses some kind of symmetry, then Gauss law is a very efficient way to calculate the electric field. It is illustrated in the following cases. Cases (i) Electric field due to an infinitely longContinue reading “APPLICATION S OF GAUSS LAW”
Atomic theories
Pencil (1 × 10-2 m) Virus (1 × 10-6 m) Red Blood Cell (1 × 10-4 m) Dust Particle (1 × 10-7 m) Now you could imagine how small an atom would be. An atom is thousand times smaller than the thickest human hair. It has an average diameter of 0.000000001 m or 1 ×Continue reading “Atomic theories”
Scales of temperature
Celcius scale Fahrenheit scale Kelvin scale There are 3 types of temperature scale Celcius scale =100 degree celcius Fahrenheit scale=32°F for water and 212°F for boiling point Kelvin scale = 273K SI unit of temperature is Kelvin Scales of thermometers Celsius scale Celsius is the common unit of measuring temperature, termed after Swedish astronomer, AndersContinue reading “Scales of temperature”
Unit of temperature.
Temperature Units: There are three units which are used to measure the temperature: Degree Celsius, Fahrenheit and Kelvin. Degree Celsius: Celsius is written as°C and read as degree. For example 20°C; it is read as twenty degree Celsius. Celsius is called as Centigrade as well. Fahrenheit: Fahrenheit is written as °F for example 25°F; itContinue reading “Unit of temperature.”
What is light year?
Light yearThe nearest star to oursolar system is ProximaCentauri. It is at a distance of2,68,770 AU. We can note herethat using AU for measuringdistances of stars would be unwieldy. Therefore,astronomers use a special unit, called ‘lightyear’, for measuring the distance in deep space.We have learnt that the speed of light in vacuumis 3 × 108Continue reading “What is light year?”
Healthy Weeknight Meals
Cooking can sometimes feel like a chore at the end of a busy day. It’s often tempting to throw a ready meal in the oven or call for take out. But preparing a simple and healthy family meal doesn’t have to be hard or time-consuming. Here are some quick wholesome dishes that you and yourContinue reading “Healthy Weeknight Meals”
Better than Poutine
I know, what could be better that a steaming plate of fries, gravy and cheese curd? Fries, gravy, cheese curd and bacon, that’s what! Throw in some fresh shallots, chilli, and a splash of roasted bone marrow and duck gravy, and we turn this popular French-Canadian dish into a something sublime.
Breakfast at my House
During the week we’re often walking out the door with a coffee in one hand and slice of toast in the other, but on weekends breakfast is never rushed. It’s a late affair, sometimes spilling over to lunch, with lots of reading and chatter in between courses of fruits, poached eggs, honey and toast. OneContinue reading “Breakfast at my House”
Roasted Pumpkin Soup
There’s nothing better than a warm bowl of pumpkin soup on a cold autumn day. Combine your roasted pumpkin with some onion, garlic, vegetable broth, and a few spices, and give it some time to simmer away. Pair it with a few slices of fresh bread to turn it into something sublime.
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