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Science Quiz #652

Science and Nature Quiz for 14 July 2021

A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

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1

Q1. What was an armillary sphere designed to do?

A
Enable astronomers to calculate the position of stars with respect to the horizon and the meridian
B
Represent kingship in the pommel of a royal sword
C
Determine latitude and longitude
D
Demonstrate the principal circles of the heavens, in an earth-centred or sun-centred universe
Select from the options above.
2

Q2. The 2020 Nobel Prize in Physics in part honoured the discovery that a robust prediction of the general theory of relativity is what?

A
Cosmic microwave background radiation
B
A supermassive compact object at the centre of our galaxy
C
Gravitational lensing
D
Black hole formation
Select from the options above.
3

Q3. What is the most noticeable reaction when sodium is put into water?

A
A flame and a virtually immediate explosion
B
The sodium dissolves instantly
C
The sodium turns yellow
D
The water turns red
Select from the options above.
4

Q4. Iodine used as a topical wash rather than taken internally has what effect?

A
It reduces freckles
B
It protects against sunburn
C
Its fumes unblock sinuses
D
It kills bacteria, e.g. in and around mild cuts and scrapes
Select from the options above.
5

Q5. Red sea plume or limu kohu (asparagopsis taxiformis) is a species of seaweed being investigated for what?

A
A role in coral regeneration
B
A beef substitute
C
Reducing methane in sheep and cattle burps
D
A role in cosmetics
Select from the options above.
6

Q6. Which of these is a portable media player launched by Apple on October 23, 2001?

A
oMiGo
B
pPod
C
iDunno
D
iPod
Select from the options above.
7

Q7. What is the process of decreasing or eliminating an unwanted magnetic field, a term first used by Commander Charles F. Goodeve, RCNVR, during World War II while trying to counter German mines?

A
Randomising
B
Degaussing
C
AC erasure
D
Lambert Point Deperming
Select from the options above.
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