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Why do woodpeckers peck? New discovery about bird brains sheds light on intriguing question（图）
鸟类大脑 交际鼓声 动物行为学
2023/6/26
A team led by a Brown biologist discovered that the same specialized brain area that helps songbirds learn their songs also exists in woodpeckers, suggesting that the communicative drumming evolved in...
Atmospheric scientists study fires to resolve ice question in climate models（图）
Atmospheric scientists fires resolve ice question climate models
2020/9/4
When fossil fuel or biomass burns, soot -- also known as black carbon -- fills the air. Black carbon is an important short-term climate driver because it absorbs solar energy and can affect the format...
UT Austin Study Raises Question: Why are Fossilized Hairs so Rare?（图）
UT Austin Fossilized Hairs so Rare
2017/9/20
When most people hear the word fossil, they probably think of gigantic leg bones or sharp teeth. But, given the right conditions, after an animal dies even delicate body coverings like skin, hair and ...
To Buzz or to Scrabble?To Foraging Bees,That's the Question
To Buzz to Scrabble To Foraging Bees
2017/7/24
Imagine going to the supermarket to stock up on groceries but coming home empty-handed because you just couldn't figure out how to work the shopping cart or figure out how to get to the ice cream tubs...
Uncovering the answer to an age-old question:how do snowflakes form?
Uncovering the answer age-old question snowflakes form
2017/7/20
More than 400 years ago, renowned mathematician and scientist Johannes Kepler speculated about the creation of one of nature’s most angelic and unique shapes: the six-sided snowflake. Although atoms w...
Experiments call origin of Earth's iron into question
Experiments call origin Earth's iron
2017/3/14
New research from The University of Texas at Austin reveals that the Earth’s unique iron composition isn’t linked to the formation of the planet’s core, calling into question a prevailing theory about...
Lab experiments question popular measure of ancient ocean temperatures
Lab question popular ancient ocean temperatures
2015/9/9
Understanding the planet’s history is crucial if we are to predict its future. While some records are preserved in ice cores or tree rings, other records of the climate’s ancient past are buried deep ...
Puzzling question in bacterial immune system answered（图）
Puzzling question bacterial immune system
2014/3/18
A central question has been answered regarding a protein that plays an essential role in the bacterial immune system and is fast becoming a valuable tool for genetic engineering. A team of researchers...
On Zudilin's q-question about Schmidt's problem
Schmidt’s problem q-binomial coefficients q-Pfaff-Saalschutz identity
2012/4/17
For any integer $r\geqslant 2$, using the $q$-Pfaff-Saalsch\"utz identity, we prove that there exists a (unique) sequence of Laurent polynomials $\{b^{(r)}_k(q)\}_{k=0}^\infty$ in $q$ with nonnegative...
Addressing the spin question in gravitational-wave searches: Waveform templates for inspiralling compact binaries with nonprecessing spins
Addressing spin question gravitational-wave searches Waveform templates inspiralling
2011/10/18
This paper presents a post-Newtonian (PN) template family of gravitational waveforms from inspiralling compact binaries with non-precessing spins, where the spin effects are described by a single "red...
A new answer to the Needham Question, or Why Galileo didn't discover universal gravitation
the Needham Question the Scientific Revolution modern physics cultural infrastructure Biblical civilization theory of gravity
2011/9/9
The cultural infrastructure that made possible Galileo’s invention of modern physics is discussed. The brand new element of modern physics is claimed to be firm belief in fundamental structure of the ...
A hypothetical answer to the question of when a sufficiently large number of elements confirm that the set is infinite
elements confirm the set is infinite
2010/11/23
We present a conjecture on integer arithmetic which implies that there is an algorithm that for each recursively enumerable set M \subseteq \mathbb{N} given by a Diophantine representation computes a...
The “cosmological principle” was set up early without realizing its implications for the
horizon problem, and almost entirely without support from observational data. Consistent signals of anisotropy...
To the Question on Double Extensive Air Showers Nature
Question Double Extensive Air Showers Nature
2011/1/5
Double Extensive Air Showers were discovered over fourth century back. But up to now there is no adequate explanation of its nature. In this paper is expected that such showers are the result of break...
On a question by Corson about point-finite coverings
coverings of Banach spaces point- nite coverings tilings
2010/12/10
We answer in the armative the following question raised by H. H. Corson in 1961: " Is it possible to cover every Banach space X by bounded convex sets with nonempty interior in such a way that no poi...