Who created the first compound microscope and telescope?

Answers

Answer 1

Answer:

Janssen

Explanation:

Answer 2

Answer:

Hans Martens/Zacharias Janssen

Explanation:

Janssen was the son of a spectacle maker named Hans Janssen, in Middleburg, Holland, and while Zacharias is credited with inventing the compound microscope, most historians surmise that his father must have played a vital role, since Zacharias was still in his teens in the 1590s.


Related Questions

True or false: Nonmetals are good conductors of electricity?

Answers

Answer:

False

They dont conduct electricity that well/at all

False , most can’t conduct it at all

What is true about matter?

A.
Matter has mass and takes up space.

B.
Matter has mass but does not take up space.

C.
Matter takes up space but does not have mass.

D.
Matter does not have mass or take up space.

Answers

Answer:

A). mateer has mass and takes place

Answer:

Explanation: Its c

HELP PLEASE! and give out a good explanation!
Which of the following form the pattern of surface currents on Earth?
A. high and low tides
B. the Sun's gravitational pull and Earth's rotation
C. global winds and the Coriolis effect
D. the Moon's gravitational pull and Earth's tilt on its axis

Answers

I think it would be C because global winds are the primary driving force of surface currents, the Coriolis effect deflects them and has them go right or left of their motions.

Answer:

C. global winds and the Coriolis effect

Explanation:

Gyres flow clockwise in Northern Hemisphere oceans and counterclockwise in Southern Hemisphere oceans because of the Coriolis Effect. creating surface ocean currents.

hurry please!!!
a) 42%

b) 14%

c) 64%

d) 100%

Answers

Answer:

A)42%

Explanation:

10+22+15+11=58

100-58=42

Is there a 28% because if you add all of that up it equals 72 and subtract 72 from 100 gives you 28%

A plate of food has both thermal energy (form of kinetic energy) and chemical energy (form of potential energy).

True
False

Answers

I believe it’s true
This statement is True :)

Answer all questions pls

1) How does the cryosphere help regulate Earth's temperature?

2) What kind of organisms are found in oceanic trenches? Describe.

3) Explain how an Estuary can support a wide variety of food webs.

4) List out and describe the factors that help meteorologists forecast weather.

Answers

Answer:

1) The cryosphere contains the frozen parts of the planet. This sphere helps maintain Earth's climate by reflecting incoming solar radiation back into space. As the world warms due to increasing greenhouse gases being added to the atmosphere by humans, the snow and ice are melting.

2) Organisms like the Frilled Shark, Giant Spider Crab. Atlantic Wolffish Pair, Fangtooth Fish, Six-Gill Shark, Giant Tube Worms, Vampire Squid, Pacific Viperfish. But there are most likely archaeabacteria which are prokaryotic bacteria or single-celled organisms. A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today.

3) Many different types of plant and animal communities call estuaries home because their waters are typically brackish — a mixture of fresh water draining from the land and salty seawater. This unique combination of salty and fresh water creates a variety of habitats. Estuaries are full of decaying plants and animals. This makes the soil of estuaries rich in nutrients. Because the soil is so rich, lots of different plants grow in estuaries. The plants attract lots of different animals to the estuary and those animals attract other animals to the estuary.

4) Temperature, humidity, precipitation, air pressure, wind speed, and wind direction are key observations of the atmosphere that help forecasters predict the weather. These same factors have been used since the first weather observations were recorded. Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists. The three main factors of weather are light (solar radiation), water (moisture) and temperature.

Explanation:

U dont have to copy and paste this put these are some ideas to use for ur answers

How did James West impact their field? How would things be different in science today if James West had not accomplished what they did?

Answers

Hey~ Hope this helps!

{p.s this is hand-written not copied and pasted. Use freely}

Answer:

James West impacted his field in an abundance of ways. For example, West and Sessler are credited as the inventors of the “foil electret microphone”. Without the creation of this compact microphone over 90 percent of all contemporary microphones – which includes those found in telephones, tape records, baby monitors and hearing aids would cease to exist today.

A roller coaster travels from the top of the hill to the bottom of the hill. What happens to its energy? Choose all that apply.

- Potential energy decreases
- Potential energy increases
- Kinetic energy increases
- Kinetic energy decreases
- Some potential and kinetic energy is converted to thermal energy by friction.

Answers

Answer:

Kinetic energy increases

Explanation:

Kinetic energy is energy that kinda only happens when somethings like moving so if something is moving super fast its kinetic energy is increasing but if something is slowing down from fast to slow its kinetic energy is decreasing that make sense?

The potential energy decreases as the kinetic energy increases

Please help me with this I will give out extra points with the brain thing if you help me with this science question 3/5 image below. I promise

Answers

Answer:

A) 200 m/s2

Explanation:

Force is the push or pulls on an object with mass that causes it to change velocity or to accelerate.

Force represents a vector, which means it has both magnitude and direction.

Given:

Mass of metal ball = 0.025 kg

Force = 5 N

To Find:

Acceleration, = ?

Solution:

Formula:

answer is 200 m/s2 lol

A(n) _________ light bulb uses the most energy and is not good to use for conserving energy.

1.incandescent
2.LED
3.CFL

Answers

LED light bulb is more energy efficient than CFL bulb simply because they are based on better technology. LED light bulbs use much lesser energy in comparison to the traditional technology.

Suppose the city wanted to put a nuclear power plant in your community. What would some of the disadvantages be?
:(

Answers

Nuclear power plants use uranium as fuel. The process of mining uranium releases high amounts of carbon dioxide into the environment. Carbon dioxide is also released into the environment when new nuclear power plants are built. Finally, the transport of radioactive waste also causes carbon dioxide emissions.

Unlike fossil fuel-fired power plants, nuclear reactors do not produce air pollution or carbon dioxide while operating. However, the processes for mining and refining uranium ore and making reactor fuel all require large amounts of energy.Jan 15, 2020

uranium fuel to produce steam for generating electricity. This process changes uranium into other radioactive materials. If a nuclear power plant accident occurs, heat and pressure build up, and the steam, along with the radioactive materials, may be released.


Nuclear power plants use uranium as fuel as in nuclear reactions. The process of mining uranium releases high amounts of carbon dioxide into the environment.

What are nuclear reactions?

There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.

In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.

In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.

Learn more about nuclear reactions,here:

https://brainly.com/question/13315150

#SPJ6

An incandescent light bulb uses 10% of the total energy as light, what happens to the remaining 90% of the electrical energy used by the bulb?

A. The electrical energy is destroyed when it is unused by the bulb.

B. The electrical energy is captured and 90 J are saved for each bulb.

C. The electrical energy is redirected to other electrical appliances in the circuit.

D. The electrical energy is transformed into thermal energy, so the bulb becomes hot.

Answers

The answer is C you welcome

How do sound waves travel?

A.Sound causes the air near it to vibrate inwards.

B.Sound transforms waves into different frequencies.

C.Sound waves radiate outward from a central point.

D.Sound moves randomly in different directions.

Please help me!

Answers

Answer:

THE ANSWER IS B!!!!

Explanation:

Help! I don't know if it's abrasion or ice wedging
A rock that is exposed to heating and cooling over and over again will eventually crack and break into smaller pieces. This is an example of what type of mechanical weathering?
A abrasion
B acid rain
C ice wedging

Answers

it should be “A”. Abrasion
I think it would be ice wedging

what do you notice about these two images

Answers

Answer:

These two images are pictures of the moon. The first one is the moon is in the third quarter. And the second picture is of the moon in the first quarter.

Explanation:

Hope This Helps!!

(brainliest please, if possible)

**Suppose a cart is being pushed by a certain net force. If the net force is doubled, by how much does the acceleration change? Explain.
NO WORK = NO CREDIT = REPORT

thx <3

Answers

Yes because the force or the pressure of the cart is getting doubled therefore it makes the speed or the net force harder

Which of the following statements are true about elements? Choose the two correct answers.

A.
Elements are the simplest form of matter.

B.
Elements combine together to form compounds.

C.
Elements are found in sunlight

D.
Elements are always positively charged.

E.
Elements are found in both living and nonliving things.

Answers

The answers are B and E
A and b because elements are the simplest form of mater and when you combine elements together they make something better or it’s called compounds

How is the Sun related to day and night and the change of seasons?

Answers

Explanation:

As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer

Answer:

As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer.

Explanation:

hope this helps have a good rest of your day :) ❤

What coefficient should be used to make the following equation balanced? N2+O2--> _NO

Answers

                 ║∧║······→Hello.←······║∧║

                                          Your answer should be:

                                                N2 + O2 → 2NO

····················································································

I hope this answered your question!

Thanks for spending time reading this :)

(A brainliest would be appreciated!)

⊕If this answer doesn't answer your question or you are displeased by it please tell me in the comments I would like to know. And if I can, I will remove it.⊕

Have a wonderful day

The coefficient used to make the following equation balanced: N2 + O2 → NO is 2.

BALANCING EQUATION:

Balancing an equation means ensuring that each atom of an element on both sides of an equation.

To balance an equation, coefficients, which are numbers placed in front of the elements, are used.

According to this question, the following equation is given:

N2 + O2 → NO

To balance the equation, we make use of coefficient 2 in front of nitrogen oxide (NO) as follows:

N2 + O2 → 2NO

Learn more at: https://brainly.com/question/11322377?referrer=searchResults

The text is divided into sections with subheadings. What does the section with the subheading "Taking Precautions" list?

a. tips for getting into the Guinness Book of World Records
Selected:b. tips for walking to the North PoleThis answer is incorrect.
c. tips for staying safe in the cold
d. tips for building a snowman

Answers

D. Tips for building a snowman
D. Tips for building a snowman

Hope this will help

Scientific laws differ from scientific theories because laws do not provide
A)
a hypothesis.
B)
a description
C)
an explanation
D)
a statement.

Answers

A) a hypothesis hope it helped :)

QUCKLY PLEASE!! what is a biogeochemical cycle? ​

Answers

It is 4 a process that recycles elements and other matter through the biosphere

a) week 1

b) week 2

c) week 3

d) week 4

Answers

Try c I think is the most accurate one
Yea it would be c because it grapes for you so now it wants you to find the weeks of the plant that need to be soiled

"Working on rigs is dangerous due to explosions and weather"
To which energy type does this apply to?

Answers

using oil as energy
Hope this helps!:)
This would apply to when you’re using oil energy
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Will give brainliest if x^2/3 = 4, what is x^2 Consider the idea of a robot that shovels snow. What would the robot look like? Write a few sentences that describe how your robot would appear. Juan sells a boat that he bought 5 years ago. He sells it for 60% less than he originally paid for it. If the original cost is b, write an expression that shows how much he sells the boat for The well-bred Swedes of the capital1 are formed on the ancient French model, and they in general speak that language; for they have a knack at acquiring languages with tolerable fluency. This may be reckoned an advantage in some respects; but it prevents the cultivation of their own, and any considerable advance in literary pursuits.A sensible writer has lately observed (I have not his work by me, therefore cannot quote his exact words), That the Americans very wisely let the Europeans make their books and fashions for them. But I cannot coincide with him in this opinion. The reflection necessary to produce a certain number even of tolerable productions2 augments more than he is aware of the mass of knowledge in the community. Desultory3 reading is commonly a mere pastime. But we must have an object to refer our reflections to, or they will seldom go below the surface. As in travelling, the keeping of a journal excites to many useful inquiries that would not have been thought of had the traveller only determined to see all he could see, without ever asking himself for what purpose. Besides, the very dabbling in literature furnishes harmless topics of conversation; for the not having such subjects at hand, though they are often insupportably fatiguing, renders the inhabitants of little towns prying and censorious. Idleness, rather than ill-nature, gives birth to scandal, and to the observation of little incidents which narrows the mind. It is frequently only the fear of being talked of which produces that puerile4 scrupulosity about trifles incompatible with an enlarged plan of usefulness, and with the basis of all moral principlesrespect for the virtues which are not merely the virtues of convention.I am, my friend, more and more convinced that a metropolis, or an abode absolutely solitary, is the best calculated for the improvement of the heart, as well as the understanding; whether we desire to become acquainted with man, nature, or ourselves. Mixing with mankind, we are obliged to examine our prejudices, and often imperceptibly lose, as we analyse them. And in the country, growing intimate with nature, a thousand little circumstances, unseen by vulgar eyes, give birth to sentiments dear to the imagination, and inquiries which expand the soul, particularly when cultivation has not smoothed into insipidity all its originality of character.I love the country, yet whenever I see a picturesque situation chosen on which to erect a dwelling I am always afraid of the improvements.5 It requires uncommon taste to form a whole, and to introduce accommodations and ornaments analogous with the surrounding-scene.I visited, near Gothenburg, a house with improved land about it, with which I was particularly delighted. It was close to a lake embosomed in pine-clad rocks. In one part of the meadows your eye was directed to the broad expanse, in another you were led into a shade, to see a part of it, in the form of a river, rush amongst the fragments of rocks and roots of trees; nothing seemed forced. One recess, particularly grand and solemn amongst the towering cliffs, had a rude stone table and seat placed in it, that might have served for a Druids haunt, whilst a placid stream below enlivened the flowers on its margin, where light-footed elves would gladly have danced their airy rounds.Here the hand of taste was conspicuous though not obtrusive, and formed a contrast with another abode in the same neighbourhood, on which much money had been lavished; where Italian colonnades were placed to excite the wonder of the rude crags, and a stone staircase, to threaten with destruction a wooden house. Venuses and Apollos condemned to lie hid in snow three parts of the year seemed equally displaced, and called the attention off from the surrounding sublimity, without inspiring any voluptuous sensations. Yet even these abortions6 of vanity have been useful. Numberless workmen have been employed, and the superintending artist has improved the labourers, whose unskilfulness tormented him, by obliging them to submit to the discipline of rules.In the last paragraph, the author discusses another abode in the same neighbourhood in order todefend the ideals expressed in the project despite the impossibility of fully realizing those idealsAsuggest that any shortcomings in the project may have been due to inadequate fundingBargue that the project would have been more pleasing if the workers had been more skillfulCdescribe the improvements that could be made in the future to make the project successfulDconcede that a poorly conceived project can still provide a benefit to those involvedE can someone plz help me Find the area of this triangle. Round to the nearest tenth. ASAP PLEASE. I NEED HELP RN ASAP I have it due in one hour PLS HELPQu le gusta a Luz?Completa. Carefully read the chart where Luz has written her likes, dislikes, and preferences. 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