Asteroids are smacking Earth twice as often as before

Giant rocks from space are falling from the sky more than they used to, but don't worry.

For the past 290 million years, large asteroids have been crashing into Earth more than twice as often as they did in the previous 700 million years, according to a new study in Thursday's journal Science .

But no need to cast a wary glance up. Asteroids still only smack Earth on average every million or few million years, even with the increased crash rate. NASA's list of potential big space rock crashes shows no pending major threats. The biggest known risk is a 4,200-foot (1.3-km) wide asteroid with a 99.988 percent chance that it will miss Earth when it whizzes very near here in 861 years.

Cityblog Science Club: 2018 Genetics Review

Cityblog introduces Science club for young and old interested readers. This section is edited by  Riya Naik (CT USA)

Pls visit  http://riyaongenetics.blogspot.com  to know more and write to us at cityblogpuneonliine@gmail.com to contribute here

2018 Genetics Review

As we enter into the year 2019, we expect more scientific questions to be answered; we expect the humankind to progress by discovering unusual scientific phenomena and we expect to provide solutions to the problems through science. However, we all can gather new knowledge by developing from our previous knowledge. 2018 has been a year where new knowledge was available in the field of genetics. This blog is all about 2018 at a glance for genetics.

One such landmark event is the discovery of a human RNA which activates innate immunity when attacked by a virus. Research published in the Journal of Biological Chemistry reveals an RNA molecule which plays an important role in the defense against the virus. This RNA is known as the nc886. “Nc” means noncoding, therefore, this RNA never codes proteins. Nevertheless, it activates the chain of events that destroys viruses. This research can be important to study the human immune system.

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Cityblog Special: Laws they dont teach you at School

WILLOUGHBY'S LAW:

When you try to prove to someone that a machine won't work, it will.

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Long Fairy Tales have a tendency to Dragon

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Cityblog User: Drone view of snowy river

Cityblog User: Drone view of snowy river

Cityblog User How is Josh?

Cityblog User: How is Josh?

CItyblog User: 4 Wheeler Cycle

CItyblog User: 4 Wheeler Cycle

When to Refuse a Hotel Room

As a travel seller, I’d hear it from time to time: “That hotel was totally unacceptable.”

But you slept there, right?

Travelers often abandon rational thinking in pursuit of a travel objective. It’s difficult to make significant emotional investment selecting and booking a hotel, long anticipating a safe, quiet sanctuary in an unfamiliar city at the end of a long journey, only to run into an obstacle. You just want to get into your room, right?

That’s not always the best idea.

Sometimes it’s necessary to refuse a hotel room, no matter how travel-worn you might be. In most cases, it’s a matter of getting the product you were expecting, but in others, your safety and security can depend on refusing a room

assignment.

Based on my experience, here are a number of situations where travelers should refuse a hotel room they’ve been given.

The Room is Damaged or in Poor Condition