Questions and Answers

Questions and Answers

My father had blood group B positive Rhesus D+, my mother A positive Rhesus D+, how come I have 0 positive Rh D+?

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Questions and Answers

Is there a relationship between the radio signal and weather conditions or time of day?

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Questions and Answers

How do I find the prescription of this parabola?

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Questions and Answers

Is there a geometric construction to determine an ellipse tangent to an arbitrary curve?

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Questions and Answers

Can static electricity continue to flow or does it discharge quickly?

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Questions and Answers

Do insulation boards lose their gas over time?

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Questions and Answers

How do you make paint?

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Questions and Answers

Do you tan as quickly and intensely as with a factor 4 or 6 with a sun cream with a high protection factor 20...

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What is the difference between an adjustable resistor and a potentiometer?

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Questions and Answers

In winter, the temperature moves smoothly from + to – . A lot of energy has to be extracted for the transition from...

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Questions and Answers

What kind of caterpillar is this?

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Questions and Answers

What kind of grasshopper is this?

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I think the air is full of H and O atoms, but why don’t they combine to form water?

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Questions and Answers

What are Lugol’s h and p sentences?

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Questions and Answers

A petrol engine compresses the mixture and a spark plug makes everything explode. In a diesel engine, only compress to burn. Why...

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Questions and Answers

Can a battery of a diesel car be charged by another battery of a petrol car?

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Questions and Answers

How can you talk about cold and heat in space if there is no air present?

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In space there is no air as in our atmosphere, but what does space consist of?

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Questions and Answers

How should you let Sweet Chestnut sprout?

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Questions and Answers

We have been suffering from small bugs in the house for a week does anyone know which bugs these are?

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